Self-awareness

Not to be confused with Self-concept, Self-consciousness, Self-perception, or Self image.

Self-awareness is the capacity for introspection and the ability to recognize oneself as an individual separate from the environment and other individuals.[1] It is not to be confused with consciousness in the sense of qualia. While consciousness is a term given to being aware of one’s environment and body and lifestyle, self-awareness is the recognition of that awareness.[2]

Neurobiological basis

There are questions regarding what part of the brain allows us to be self-aware and how we are biologically programmed to be self-aware. V.S. Ramachandran has speculated that mirror neurons may provide the neurological basis of human self-awareness.[3] In an essay written for the Edge Foundation in 2009 Ramachandran gave the following explanation of his theory: "... I also speculated that these neurons can not only help simulate other people's behavior but can be turned 'inward'—as it were—to create second-order representations or meta-representations of your own earlier brain processes. This could be the neural basis of introspection, and of the reciprocity of self awareness and other awareness. There is obviously a chicken-or-egg question here as to which evolved first, but... The main point is that the two co-evolved, mutually enriching each other to create the mature representation of self that characterizes modern humans".[4]

Animals

Studies have been done mainly on primates to test if self-awareness is present. Apes, monkeys, elephants, and dolphins have been studied most frequently. The most relevant studies to this day that represent self-awareness in animals have been done on chimpanzees, dolphins, and magpies. Self-awareness in animals is tested through mirror self recognition. Animals who show mirror self recognition go through four stages 1) social response, 2) physical mirror inspection, 3) repetitive mirror testing behavior, and 4) the mark test; which involves the animals spontaneously touching a mark on their body which would've been difficult to see without the mirror.[5]

The mirror test is a simple measure of self-awareness.

The ‘Red Spot Technique’ created and experimented by Gordon Gallup[6] studies self-awareness in animals (primates). Toivanen says on a study done on perceptual self-awareness,"The attribution of self-perception to animals is based on a distinction between the experiential awareness of the soul and the intellectual understanding of its essence, a distinction postulated."[7] In this technique, a red odorless spot is placed on an anesthetized primate’s forehead. The spot is placed on the forehead so that it can only be seen through a mirror. Once the individual awakens, independent movements toward the spot after seeing their reflection in a mirror are observed. During the Red Spot Technique, after looking in the mirror, chimpanzees used their fingers to touch the red dot that was on their forehead and even after touching the red dot they would smell their fingertips.[8] "Animals that can recognize themselves in mirrors can conceive of themselves," says Gallup. Another prime example are elephants. Three elephants were exposed to large mirrors where experimenters studied the reaction when they saw their reflection. These elephants were given the "litmus mark test" in order to see whether they were aware of what they were looking at. This visible mark was applied on the elephants and the researchers reported a large progress with self-awareness. The elephants shared this success rate with other animals such as monkeys and dolphins.[9]

Chimpanzees and other apes – species which have been studied extensively – compare the most to humans with the most convincing findings and straightforward evidence in the relativity of self-awareness in animals so far.[10] Dolphins were put to a similar test and achieved the same results. Diana Reiss, a psycho-biologist at the New York Aquarium discovered that bottlenose dolphins can recognize themselves in mirrors.[11]

Researchers used the Mark test or Mirror test [12] to study the magpie’s self awareness. As a majority of birds are blind below the beak, Prior and colleagues[10] marked the birds’ neck with three different colors: red, yellow and a black imitation, as magpies are originally black. When placed in front of a mirror, the birds with the red and yellow spots began scratching at their necks, signaling the understanding of something different being on their bodies. During one trial with a mirror and a mark, three out of the five magpies showed a minimum of one example of self-directed behavior. The magpies explored the mirror by moving toward it and looking behind it. One of the magpies, Harvey, during several trials would pick up objects, posed, did some wing-flapping, all in front of the mirror with the objects in his beak. This represents a sense of self-awareness; knowing what is going on within himself and in the present. The authors suggest that self-recognition in birds and mammals may be a case of convergent evolution, where similar evolutionary pressures result in similar behaviors or traits, although they arrive at them via different routes.[13]

A few slight occurrences of behavior towards the magpie's own body happened in the trial with the black mark and the mirror. It is an assumption in this study[10] that the black mark may have been slightly visible on the black feathers. Prior and Colleagues,[10] stated "This is an indirect support for the interpretation that the behavior towards the mark region was elicited by seeing the own body in the mirror in conjunction with an unusual spot on the body."

The behaviors of the magpies clearly contrasted with no mirror present. In the no-mirror trials, a non-reflective gray plate of the same size and in the same position as the mirror was swapped in. There were not any mark directed self-behaviors when the mark was present, in color, or in black.[10] Prior and Colleagues,[10] data quantitatively matches the findings in chimpanzees. In summary of The Mark Test,[10] the results show that magpies understand that a mirror image represents their own body; magpies show to have self-awareness.

Psychology

Self-awareness has been called "arguably the most fundamental issue in psychology, from both a developmental and an evolutionary perspective."[14]

Self-Awareness theory, developed by Duval and Wicklund in their 1972 landmark book A theory of objective self awareness, states that when we focus our attention on ourselves, we evaluate and compare our current behavior to our internal standards and values. We become self-conscious as objective evaluators of ourselves.[15] However self-awareness is not to be confused with self-consciousness.[16] Various emotional states are intensified by self-awareness. However, some people may seek to increase their self-awareness through these outlets. People are more likely to align their behavior with their standards when made self-aware. People will be negatively affected if they don't live up to their personal standards. Various environmental cues and situations induce awareness of the self, such as mirrors, an audience, or being videotaped or recorded. These cues also increase accuracy of personal memory.[17] In one of Demetriou's neo-Piagetian theories of cognitive development, self-awareness develops systematically from birth through the life span and it is a major factor for the development of general inferential processes.[18] Moreover, a series of recent studies showed that self-awareness about cognitive processes participates in general intelligence on a par with processing efficiency functions, such as working memory, processing speed, and reasoning.[19] Albert Bandura's theory of self-efficacy builds on our varying degrees of self-awareness. It is "the belief in one’s capabilities to organize and execute the courses of action required to manage prospective situations." A person’s belief in their ability to succeed sets the stage to how they think, behave and feel. Someone with a strong self-efficacy, for example, views challenges as mere tasks that must be overcome, and are not easily discouraged by setbacks. They are aware of their flaws and abilities and choose to utilize these qualities to the best of their ability. Someone with a weak sense of self-efficacy evades challenges and quickly feels discouraged by setbacks. They may not be aware of these negative reactions, and therefore do not always change their attitude. This concept is central to Bandura’s social cognitive theory, "which emphasizes the role of observational learning, social experience, and reciprocal determinism in the development of personality."[20]

Developmental stages

Individuals become conscious of themselves through the development of self-awareness.[14] This particular type of self-development pertains to becoming conscious of one's own body and mental state of mind including thoughts, actions, ideas, feelings and interactions with others.[21] "Self-awareness does not occur suddenly through one particular behavior: it develops gradually through a succession of different behaviors all of which relate to the self."[22] The monitoring of one's mental states is called metacognition and it is considered to be an indicator that there is some concept of the self.[23] It is developed through an early sense of non-self components using sensory and memory sources. In developing self –awareness through self-exploration and social experiences one can broaden their social world and become more familiar with the self.

According to Emory University’s Philippe Rochat, there are five levels of self-awareness which unfold in early development and six potential prospects ranging from "Level 0" (having no self-awareness) advancing complexity to "Level 5" (explicit self-awareness).[14]

Infancy and early childhood

By the time an average toddler reaches 18 months they will discover themselves and recognize their own reflection in the mirror. By the age of 24 months the toddler will observe and relate their own actions to those actions of other people and the surrounding environment.[24] There are multiple experiments that show a child’s self-awareness. In what has come to be known as The Shopping Cart Task, "Children were asked to push a shopping the cart to their mothers but in attempting to do so they had to step on the mat and in consequence, their body weight prevented the cart from moving".[25]

Around school age a child’s awareness of personal memory transitions into a sense of one's own self. At this stage, a child begins to develop interests along with likes and dislikes. This transition enables the awareness of an individual’s past, present, and future to grow as conscious experiences are remembered more often.[24]

As a child’s self-awareness increases they tend to separate and become their own person. Their cognitive and social development allows "the taking of another's perspective and the accepting of inconsistencies."[26] By adolescence, a coherent and integrated self-perception normally emerges. This very personal emerging perspective continues to direct and advance an individual’s self-awareness throughout their adult life.

Adolescence

One becomes conscious of their emotions during adolescence. Most children are aware of emotions such as shame, guilt, pride and embarrassment by the age to two, but do not fully understand how those emotions affect their life.[27] By age 13, children become more in touch with these emotions and begin to apply them to their own lives. A study entitled "The Construction of the Self" found that many adolescents display happiness and self-confidence around friends, but hopelessness and anger around parents due to the fear of being a disappointment. Teenagers were also shown to feel intelligent and creative around teachers, and shy, uncomfortable and nervous around people they were not familiar with.[28]

Philosophy

An early philosophical discussion of self-awareness is that of John Locke. Locke was apparently influenced by René Descartes' statement normally translated 'I think, therefore I am' (Cogito ergo sum). In chapter XXVII "On Identity and Diversity" of Locke's An Essay Concerning Human Understanding (1689) he conceptualized consciousness as the repeated self-identification of oneself through which moral responsibility could be attributed to the subject—and therefore punishment and guiltiness justified, as critics such as Nietzsche would point out, affirming "...the psychology of conscience is not 'the voice of God in man'; it is the instinct of cruelty ... expressed, for the first time, as one of the oldest and most indispensable elements in the foundation of culture."[29][30][31] John Locke does not use the terms self-awareness or self-consciousness though.[32]

According to Locke, personal identity (the self) "depends on consciousness, not on substance.[33] We are the same person to the extent that we are conscious of our past and future thoughts and actions in the same way as we are conscious of our present thoughts and actions. If consciousness is this "thought" which doubles all thoughts, then personal identity is only founded on the repeated act of consciousness: "This may show us wherein personal identity consists: not in the identity of substance, but ... in the identity of consciousness."[33] For example, one may claim to be a reincarnation of Plato, therefore having the same soul. However, one would be the same person as Plato only if one had the same consciousness of Plato's thoughts and actions that he himself did. Therefore, self-identity is not based on the soul. One soul may have various personalities.[34]

Locke argues that self-identity is not founded either on the body or the substance, as the substance may change while the person remains the same. "Animal identity is preserved in identity of life, and not of substance", as the body of the animal grows and changes during its life.[33] describes a case of a prince and a cobbler in which the soul of the prince is transferred to the body of the cobbler and vice versa. The prince still views himself as a prince, though he no longer looks like one. This border-case leads to the problematic thought that since personal identity is based on consciousness, and that only oneself can be aware of his consciousness, exterior human judges may never know if they really are judging—and punishing—the same person, or simply the same body. Locke argues that you may be judged for the actions of your body rather than your soul, and only God knows how to correctly judge a man’s actions. Men also are only responsible for the acts of which they are conscious. This forms the basis of the insanity defense which argues that one cannot be held accountable for acts in which they were unconsciously irrational, or mentally ill[35]— In reference to man’s personality, Locke claims that "whatever past actions it cannot reconcile or appropriate to that present self by consciousness, it can be no more concerned in it than if they had never been done: and to receive pleasure or pain, i.e. reward or punishment, on the account of any such action, is all one as to be made happy or miserable in its first being, without any demerit at all."[36]

Disorders affecting self awareness

The medical term for not seeing what ails you is anosognosia, or more commonly known as a lack of insight. Having a lack of awareness raises the risks of treatment and service nonadherence.[37] Individuals who deny having an illness may be against seeking professional help because they are convinced that nothing is wrong with them. Disorders of self-awareness frequently follow frontal lobe damage.[38] There are two common methods used to measure how severe an individual’s lack of self-awareness is. The Patient Competency Rating Scale (PCRS) evaluates self-awareness in patients who have endured a traumatic brain injury.[39] PCRS is a 30-item self-report instrument which asks the subject to use a 5-point Likert scale to rate his or her degree of difficulty in a variety of tasks and functions. Independently, relatives or significant others who know the patient well are also asked to rate the patient on each of the same behavioral items. The difference between the relatives’ and patient’s perceptions is considered an indirect measure of impaired self-awareness. The limitations of this experiment rest on the answers of the relatives. Results of their answers can lead to a bias. This limitation prompted a second method of testing a patient’s self-awareness. Simply asking a patient why they are in the hospital or what is wrong with their body can give compelling answers as to what they see and are analyzing.[40]

Dissociative identity disorder

Dissociative identity disorder or multiple personality disorder is a disorder involving a disturbance of identity in which two or more separate and distinct personality states (or identities) control an individual's behavior at different times.[41] One identity may be different from another, and when an individual with DID is under the influence of one of their identities, they may forget their experiences when they switch to the other identity. "When under the control of one identity, a person is usually unable to remember some of the events that occurred while other personalities were in control."[42] They may experience time loss, amnesia, and adopt different mannerisms, attitudes, speech and ideas under different personalities. They are often unaware of the different lives they lead or their condition in general, feeling as though they are looking at their life through the lens of someone else, and even being unable to recognize themselves in a mirror.[43] Two cases of DID have brought awareness to the disorder, the first case being that of Eve. This patient harbored three different personalities: Eve White the good wife and mother, Eve Black the party girl, and Jane the intellectual. Under stress, her episodes would worsen. She even tried to strangle her own daughter and had no recollection of the act afterward. Eve went through years of therapy before she was able to learn how to control her alters and be mindful of her disorder and episodes. Her condition, being so rare at the time, inspired the book and film adaptation The Three Faces of Eve, as well as a memoir by Eve herself entitled I am Eve. Doctors speculated that growing up during the Depression and witnessing horrific things being done to other people could have triggered emotional distress, periodic amnesia, and eventually DID.[44] In the second case, Shirley Mason, or Sybil, was described as having over 16 separate personalities with different characteristics and talents. Her accounts of horrific and sadistic abuse by her mother during childhood prompted doctors to believe that this trauma caused her personalities to split, furthering the unproven idea that this disorder was rooted in child abuse, while also making the disorder famous. In 1998 however, Sybil’s case was exposed as a sham. Her therapist would encourage Sybil to act as her other alter ego although she felt perfectly like herself. Her condition was exaggerated in order to seal book deals and television adaptations.[45] Awareness of this disorder began to crumble shortly after this finding. To this day, no proven cause of DID has been found, but treatments such as psychotherapy, medications, hypnotherapy, and adjunctive therapies have proven to be very effective.[46]

Autism spectrum disorder

Autism spectrum disorders (ASDs) are a group of neurodevelopmental disabilities that can adversely impact social communication and create behavioral challenges (Understanding Autism, 2003)[47] "Autism spectrum disorder (ASD) and autism are both general terms for a group of complex disorders of brain development. These disorders are characterized, in varying degrees, by difficulties in social interaction, verbal and nonverbal communication and repetitive behaviors."[48] ASDs can also cause imaginative abnormalities and can range from mild to severe, especially in sensory-motor, perceptual and affective dimensions.[49] Children with ASD may struggle with self-awareness and self acceptance. Their different thinking patterns and brain processing functions in the area of social thinking and actions may compromise their ability to understand themselves and social connections to others[50] About 75% diagnosed autistics are mentally handicapped in some general way and the other 25% diagnosed with Asperger's Syndrome show average to good cognitive functioning.[51] When we compare our own behavior to the morals and values that we were taught, we can focus more attention on ourselves which increasing self-awareness. To understand the many effects of autism spectrum disorders on those afflicted have led many scientists to theorize what level of self-awareness occurs and in what degree. Research found, ASD can be associated with intellectual disability, difficulties in motor coordination and attention. It can be affected physical health issues as well such as sleep and gastrointestinal disturbances. As a result of all those problems, individuals are literally unaware of themselves.[52] It is well known that children suffering from varying degrees of autism struggle in social situations. Scientists at the University of Cambridge have produced evidence that self-awareness is a main problem for people with ASD. Researchers used functional magnetic resonance scans (FMRI) to measure brain activity in volunteers being asked to make judgments about their own thoughts, opinions, preferences, as well as about someone else's. One area of the brain closely examined was the ventromedial pre-frontal cortex (vMPFC) which is known to be active when people think about themselves.[53]

Major brain structures implicated in autism

A study out of Stanford University has tried to map out brain circuits with understanding self-awareness in Autism Spectrum Disorders.[54] This study suggests that self-awareness is primarily lacking in social situations but when in private they are more self-aware and present. It is in the company of others while engaging in interpersonal interaction that the self-awareness mechanism seems to fail. Higher functioning individuals on the ASD scale have reported that they are more self-aware when alone unless they are in sensory overload or immediately following social exposure.[55] Self-awareness dissipates when an autistic is faced with a demanding social situation. This theory suggests that this happens due to the behavioral inhibitory system which is responsible for self-preservation. This is the system that prevents human from self-harm like jumping out of a speeding bus or putting our hand on a hot stove. Once a dangerous situation is perceived then the behavioral inhibitory system kicks in and restrains our activities. "For individuals with ASD, this inhibitory mechanism is so powerful, it operates on the least possible trigger and shows an over sensitivity to impending danger and possible threats.[55] Some of these dangers may be perceived as being in the presence of strangers, or a loud noise from a radio. In these situations self-awareness can be compromised due to the desire of self preservation, which trumps social composure and proper interaction.

The Hobson hypothesis reports that autism begins in infancy due to the lack of cognitive and linguistic engagement which in turn results in impaired reflective self-awareness. In this study ten children with Asperger's Syndrome were examined using the Self-understanding Interview. This interview was created by Damon and Hart and focuses on seven core areas or schemas that measure the capacity to think in increasingly difficult levels. This interview will estimate the level of self understanding present. "The study showed that the Asperger group demonstrated impairment in the 'self-as-object' and 'self-as-subject domains of the Self-understanding Interview, which supported Hobson's concept of an impaired capacity for self-awareness and self-reflection in people with ASD.".[56] Self-understanding is a self description in an individual’s past, present and future. Without self-understanding it is reported that self-awareness is lacking in people with ASD.

Joint attention (JA) was developed as a teaching strategy to help increase positive self-awareness in those with autism spectrum disorder.[57] JA strategies were first used to directly teach about reflected mirror images and how they relate to their reflected image. Mirror Self Awareness Development (MSAD) activities were used as a four-step framework to measure increases in self-awareness in those with ASD. Self-awareness and knowledge is not something that can simply be taught through direct instruction. Instead, students acquire this knowledge by interacting with their environment.[57] Mirror understanding and its relation to the development of self leads to measurable increases in self-awareness in those with ASD. It also proves to be a highly engaging and highly preferred tool in understanding the developmental stages of self- awareness.

There have been many different theories and studies done on what degree of self-awareness is displayed among people with autism spectrum disorder. Scientists have done research about the various parts of the brain associated with understanding self and self-awareness. Studies have shown evidence of areas of the brain that are impacted by ASD. Other theories suggest that helping an individual learn more about themselves through Joint Activities, such as the Mirror Self Awareness Development may help teach positive self-awareness and growth. In helping to build self-awareness it is also possible to build self-esteem and self acceptance. This in turn can help to allow the individual with ASD to relate better to their environment and have better social interactions with others.

Schizophrenia

Schizophrenia is a chronic psychiatric illness characterized by excessive dopamine activity in the mesolimbic tract and insufficient dopamine activity in the mesocortical tract leading to symptoms of psychosis along with poor cognition in socialization. Under the Diagnostic and Statistical Manual of Mental Disorders, people with schizophrenia have a combination of positive, negative and psychomotor symptoms. These cognitive disturbances involve rare beliefs and/or thoughts of a distorted reality that creates an abnormal pattern of functioning for the patient. Multiple studies have investigated this issue. Although it has been studied and proven that schizophrenia is hereditary,[58] most patients that inherit this gene are not aware of their disorder, regardless of their family history. It is believed that Schizophrenia, in individuals of a family history of the disease, can be triggered by stressful life events.[59] The level of self-awareness among patients with schizophrenia is a heavily studied topic.

Schizophrenia as a disease state is characterized by severe cognitive dysfunction and it is uncertain to what extent patients are aware of this deficiency. Medalia and Lim (2004),[60] investigated patients’ awareness of their cognitive deficit in the areas of attention, nonverbal memory, and verbal memory. Results from this study (N=185) revealed large discrepancy in patients’ assessment of their cognitive functioning relative to the assessment of their clinicians. Though it is impossible to access ones’ consciousness and truly understand what a schizophrenic believes, regardless in this study, patients were not aware of their cognitive dysfunctional reasoning. In the DSM-5, to properly diagnose a schizophrenic, they must have two or more of the following symptoms in the duration of one month: delusions*, hallucinations*, disorganized speech*, grossly disorganized/catatonic behavior and negative symptoms (*these three symptoms above all other symptoms must be present to correctly diagnose a patient.) Sometimes these symptoms are very prominent and are treated with a combination of antipsychotics (i.e. haloperidol, loxapine), atypical antipsychotics (such as clozapine and risperdone) and psychosocial therapies that include family interventions and socials skills. When a patient is undergoing treatment and recovering from the disorder, the memory of their behavior is present in a diminutive amount; thus, self-awareness of diagnoses of schizophrenia after treatment is rare, as well as subsequent to onset and prevalence in the patient.

The above findings are further supported by a study conducted by Amador and colleagues.[61] The study suggests a correlation exists between patient insight, compliance and disease progression. Investigators assess insight of illness was assessed via Scale to Assess Unawareness of Mental Disorder and was used along with rating of psychopathology, course of illness, and compliance with treatments in a sample of 43 patients. Patients with poor insight are less likely to be compliant with treatment and are more likely to have a poorer prognosis. Patients with hallucinations sometimes experience positive symptoms, which can include delusions of reference, thought insertion/withdrawal, thought broadcast, delusions of persecution, grandiosity and many more. These psychoses skew the patient’s perspectives of reality in ways in which they truly believe are really happening. For instance, a patient that is experiencing delusions of reference may believe while watching the weather forecast that when the weatherman says it will rain, he is really sending a message to the patient in which rain symbolizes a specific warning completely irrelevant to what the weather is. Another example would be thought broadcast, which is when a patient believes that everyone can hear their thoughts. These positive symptoms sometimes are so severe to where the schizophrenic believes that something is crawling on them or smelling something that is not there in reality. These strong hallucinations are intense and difficult to convince the patient that they do not exist outside of their cognitive beliefs, making it extremely difficult for a patient to understand and become self-aware that what they are experiencing is in fact not there.

Furthermore, a study by Bedford and Davis[62](2013) was conducted to look at the association of denial vs. acceptance of multiple facets of schizophrenia (self reflection, self perception and insight) and its effect on self-reflection (N=26). Study results suggest patients with increased disease denial have lower recollection for self evaluated mental illnesses. To a great extent, disease denial creates a hardship for patients to undergo recovery because their feelings and sensations are intensely outstanding. But just as this and the above studies imply, a large proportion of schizophrenics do not have self-awareness of their illness for many factors and severity of reasoning of their diagnoses.

Bipolar disorder

Bipolar disorder is an illness that causes shifts in mood, energy, and ability to function. Self-awareness is crucial in those suffering from this disease, as they must be able to distinguish between feeling a certain way because of the disorder or because of separate issues. "Personality, behavior, and dysfunction affect your bipolar disorder, so you must 'know' yourself in order to make the distinction."[63] This disorder is a difficult one to diagnose, as self-awareness changes with mood. "For instance, what might appear to you as confidence and clever ideas for a new business venture might be a pattern of grandiose thinking and manic behavior".[64] Issues occur between understanding irrationality in a mood swing and being completely wrapped in a manic episode, rationalizing that the exhibited behaviors are normal.

Theater

Theater also concerns itself with other awareness besides self-awareness. There is a possible correlation between the experience of the theater audience and individual self-awareness. As actors and audiences must not "break" the fourth wall in order to maintain context, so individuals must not be aware of the artificial, or the constructed perception of his or her reality. This suggests that both self-awareness and the social constructs applied to others are artificial continuums just as theater is. Theatrical efforts such as Six Characters in Search of an Author, or The Wonderful Wizard of Oz, construct yet another layer of the fourth wall, but they do not destroy the primary illusion. Refer to Erving Goffman's Frame Analysis: An Essay on the Organization of Experience.

Science fiction

Main article: Science fiction

In science fiction, self-awareness describes an essential human property that often (depending on the circumstances of the story) bestows personhood onto a non-human. If a computer, alien or other object is described as "self-aware", the reader may assume that it will be treated as a completely human character, with similar rights, capabilities and desires to a normal human being.[65] The words "sentience", "sapience" and "consciousness" are used in similar ways in science fiction.

See also

Footnotes

  1. http://www.merriam-webster.com/dictionary/self-awareness
  2. Ferris, Jabr. "Self-Awareness with a Simple Brain". http://www.scientificamerican.com/article/self-awareness-with-a-simple-brain/''.
  3. Oberman, L.; Ramachandran, V.S. (2009). "Reflections on the Mirror Neuron System: Their Evolutionary Functions Beyond Motor Representation". In Pineda, J.A. Mirror Neuron Systems: The Role of Mirroring Processes in Social Cognition. Humana Press. pp. 39–62. ISBN 978-1-934115-34-3.
  4. Ramachandran, V.S. (January 1, 2009). "Self Awareness: The Last Frontier, Edge Foundation web essay". Retrieved July 26, 2011.
  5. Plotnik, Waal, Reiss, Joshua, Frans, Diana. "Self recognition in an Asian elephant". Proceedings of the National Academy of Science of the USA.
  6. Bekoff, M (2002). "Animal reflections.". Nature 419: 255. doi:10.1038/419255a.
  7. Toivanen, Juhana (July 2013). "Perceptual Self-Awareness in Seneca, Augustine, and Olivi". 51, Number 3 (DOI: 10.1353/hph.2013.0061). pp. pp. 355–382.
  8. Gallup Jr, G. G.; Anderson, J. R., & Shillito, D. J. (2002). "The mirror test. The cognitive animal: Empirical and theoretical perspectives on animal cognition" (PDF).
  9. Plotnik et al., (2006)
  10. 10.0 10.1 10.2 10.3 10.4 10.5 10.6 Prior, H; Schwarz, A., Güntürkün, O (2008). "Mirror-Induced Behavior in the Magpie (Pica pica): Evidence of Self-Recognition". PLoS Biol 6 (8): e202. doi:10.1371/journal.pbio.0060202. PMC 2517622. PMID 18715117.
  11. Tennesen, M (2003). "Do Dolphins Have a Sense of Self?". National Wildlife. World Edition.
  12. Bard, Kim. "Self-Awareness in Human and Chimpanzee Infants: What Is Measured and What Is Meant by the Mark and Mirror Test?". Taylor & Francis Online. Retrieved 2009.
  13. Alison, Motluk. "Mirror test shows magpies aren't so bird-brained". http://www.newscientist.com/article/dn14552-mirror-test-shows-magpies-arent-so-birdbrained.html#.VHVdHf4tDIV''.
  14. 14.0 14.1 14.2 14.3 Rochat, Philippe (2003). "Five levels of self-awareness as they unfold early in life" (PDF). Consciousness and Cognition 12 (4): 717–731. doi:10.1016/s1053-8100(03)00081-3.
  15. Duval, Shelley and Wicklund, Robert A (1972) A theory of objective self awareness Academic Press.
  16. Anthony P. Cohen, Self-Consciousness: An Alternative Anthropology of Identity, 1994. Google Books link.
  17. Thomas S. Duval Self-Awareness and Causal Attribution, p. 1, Springer, 2001 ISBN 978-0-7923-7501-2
  18. Demetriou, A., & Kazi, S. (2001). Unity and modularity in the mind and the self: Studies on the relationships between self-awareness, personality, and intellectual development from childhood to adolescence. London: Routledge.
  19. Demetriou, A.; Kazi, S. (2006). "Self-awareness in g (with processing efficiency and reasoning)". Intelligence 34: 297–317. doi:10.1016/j.intell.2005.10.002.
  20. Cherry, Kendra. "What is Self-efficacy?". http://psychology.about.com/''.
  21. Geangu, E. (2008). "Notes on Self-Awareness Development in Early Infancy" (PDF). Gognitie, Creier, Comportamente 12 (1).
  22. Bertenthal, B.; Fischer, K. W. (1978). "Development of Self-Recognition in the Infant" (PDF). Developmental Psychology 14 (1): 44–50. doi:10.1037/0012-1649.14.1.44.
  23. Justin.J, Couchman. "Humans and monkeys distinguish between self-generated, opposing, and random actions". http://link.springer.com/article/10.1007/s10071-014-0792-6''. Springer Berlin Heidelberg.
  24. 24.0 24.1 Rochat, Philippe (1998). "Self-Perception and Action in Infancy" (PDF). Exp Brain Res 123: 102–109. doi:10.1007/s002210050550.
  25. Moore, Mealiea, Garon, Povinelli, Chris, Jennifer, Nancy, Daniel (May 2007). "The Development of Body Self-Awareness". Psychology Press: 18.
  26. Glick, M.; Ziegler, E. (1985). Self-Image: A Cognitive-Development Approach (R.L Leahy ed.). Orlando, FL: Academic Press.
  27. Zeanah, Charles (2009). Handbook of Infant Mental Health. New York: Guilford Press.
  28. Harter, Susan (1999). The Construction of the Self. Guilford Press.
  29. Ecce Homo by Friedrich Wilhelm Nietzsche p. 117
  30. Richard Schacht Nietzsche, Genealogy, Morality, p. 244, University of California Press, 1994 ISBN 978-0-520-08318-9
  31. What Nietzsche Taught pp. 209–10.
  32. An Essay Concerning Human Understanding by John Locke. Books.google.com. Retrieved February 11, 2012.
  33. 33.0 33.1 33.2 Kendra, Cherry. "What Is Self-Awareness?". http://psychology.about.com/od/cognitivepsychology/fl/What-Is-Self-Awareness.htm''.
  34. "Self-Awareness".
  35. Abraham S. Goldstein The Insanity Defense, p. 9, Yale University Press, 1967 ISBN 978-0-300-00099-3
  36. Kendra, Cherry. "What Is Self-Awareness?". http://psychology.about.com/od/cognitivepsychology/fl/What-Is-Self-Awareness.htm''.
  37. Xavier, Amador. "Anosognosia (Lack of Insight) Fact Sheet". http://www.nami.org/Content/NavigationMenu/Mental_Illnesses/Schizophrenia9/Anosognosia_Fact_Sheet.htm''.
  38. Prigatano, George P. "Disorders of Behavior and Self-Awareness". thebarrow.org.
  39. Leathem, Janet. "Self- and Informant-Ratings on the Patient Competency Rating Scale in Patients with Traumatic Brain Injury". Journal of Clinical and Experimental Neuropsychology. Retrieved 2010.
  40. George P, Prigatano, PhD. "Impaired Awareness, Finger Tapping, and Rehabilitation Outcome After Brain Injury". http://www.thebarrow.org/Education_And_Resources/Barrow_Quarterly/204951''.
  41. National alliance on mental illness. "Mental illnesses". http://www.nami.org/template.cfm?section=By_Illness''.
  42. "What is dissociative identity disorder (DID)?". National Alliance on Mental Illness.
  43. Dryden-Edwards, Roxanne. "Dissociative Identity Disorder". Medicine.net.
  44. Ramsland, Katherine. "Multiple Personalities: Crime and Defense". crimelibrary.com.
  45. Ramsland, Katherine. "Multiple Personalities: Crime and Defense". crimelibrary.com.
  46. Dryden-Edwards, Roxanne. "Dissociative Identity Disorder". medicinenet.com.
  47. National Institute of Neurological Disorders and Stroke. "Autism Fact Sheet". http://www.ninds.nih.gov/disorders/autism/detail_autism.htm''. Office of Communications and Public Liaison.
  48. "Autistic disorder".
  49. "Recognizing Autism Spectrum Disorder". autism.org.
  50. Sarita, Freedman, PhD. "Self-Awareness and Self-Acceptance in School-Age Students with ASD". http://autismdigest.com/self-awareness-and-self-acceptance-in-school-age-students-with-asd/''. 2014 Autism Asperger's Digest. AADigest is a division of Future Horizons.
  51. Victoria, McGeer. "Autistic Self-Awareness". Philosophy, Psychiatry, & Psychology 11 (September, 2004): 235–251. doi:10.1353/ppp.2004.0066. Retrieved 27 November 2014.
  52. Autism, Speaks. "What Is Autism? What is Autism Spectrum Disorder?". http://www.autismspeaks.org/what-autism''. http://www.autismspeaks.org/what-autism.
  53. "How the autistic brain distinguishes oneself from others". Science Daily. December 14, 2009.
  54. Uddin, Lucina. "Neural Basis of Self and Other Representation in Autism: An fMRI Study of Self-Face Recognition". PLOS One. Retrieved 2008.
  55. 55.0 55.1 Uddin, LQ (June 2011). journal=Neurocase "The self in autism: an emerging view from neuroimaging." 17 (3). pp. 201–8. doi:10.1080/13554794.2010.509320.
  56. Jackson, P; Skirrow, P; Hare DJ (May 2012). "Asperger through the looking glass: an exploratory study of self-understanding in people with Asperger's syndrome". J Autism Dev Disord 42 (5). pp. 697–706. doi:10.1007/s10803-011-1296-8.
  57. 57.0 57.1 "University of Pennsylvania".
  58. Albert M. Barrett (July 1927). "Hereditary Relations in Schizophrenia". The American Journal of Psychiatry 84 (1). pp. 77–104. doi:10.1176/ajp.84.1.77.
  59. Day, R. (2007-08-23). "Life events and schizophrenia: The “triggering” hypothesis". Acta Psychiatrica Scandinavica 64 (2). doi:10.1111/j.1600-0447.1981.tb00765.x. Retrieved 2015-03-11.
  60. Medalia, Amelia (2004). "Self-awareness of cognitive functioning in schizophrenia". Schizophrenia Research 71 (2-3): 331–338. doi:10.1016/j.schres.2004.03.003. PMID 15474903. Retrieved April 23, 2014.
  61. Amador; Lim (1993). "Assessment of insight in psychosis". American Journal of Psychiatry 150 (6): 873–879.
  62. Bedford; Davis (2013). "Denial of illness in schizophrenia as a disturbance of self-reflection, self-perception and insight.". Schizophrenia Research.
  63. "Self Awareness". Bipolar Insights.
  64. Tartakovsky, Margarita. "Living with Bipolar Disorder". psychcentral.com.
  65. Robert Kolker Stanley Kubrick's 2001: A Space Odyssey, p. 106, Oxford University Press US, 2006 ISBN 978-0-19-517452-6