Lecture 4 April 11, 2013 _Self Awareness_ 3-per-page

12 4 results suggests that the anterior right

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Unformatted text preview: f the face that they had been shown. 12 4 Results Suggests that the anterior right hemisphere may be critically engaged in detecting the self face. 14 Mike or me? Self-recognition in a split-brain patient David J. Turk, Todd F. Heatherton, William M. Kelley, Margaret G. Funnell, Michael S. Gazzaniga & C. Neil , Macrae Nature Neuroscience 5, 841 - 842 (2002) But maybe not It is unclear the extent to which previous findings reflect hemispheric specialization in selfrecognition or memory components of the experimental task. A split-brain patient (epileptic individual whose corpus callosum had been severed to minimize the spread of seizure activity) was asked to recognize morphed facial stimuli—presented separately to each hemisphere—as either himself or a familiar other. 15 5 Mike or Me? 16 Left hemisphere is associated w/ self recognition Results Whereas JW's right hemisphere showed a bias toward recognizing morphed faces as a familiar other, his left hemisphere had the opposite pattern: biased recognition in favor of self 17 USED fMRI Neural Correlates of Self-Reflection Johnson et al., (2002), Brain > experiment conducted to see whether brain responds differently self reflection v. general konwledge Used fMRI to examine activity in specific brain regions Paradigm – Ps were asked to make decisions about themselves on specific statements requiring self-evaluation in the domains of mood, social interactions, cognitive and physical abilities. – A standard set of statements was administered via headphones to each participant during scanning. – Participants responded to each statement with a ‘yes’ (right hand) or ‘no’ (left hand) button press. – Two Conditions: Self-Reflection: ‘I get angry easily’, ‘I often forget things’, ‘My future is bright’, ‘I’d rather be alone’, ‘I catch on quickly’, ‘I can be trusted’ and ‘I’m good at...
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This note was uploaded on 06/10/2013 for the course PSC 161 taught by Professor Sommer during the Spring '10 term at UC Davis.

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