Textbook Notes (363,222)
Canada (158,274)
Psychology (9,573)
PSYB57H3 (369)
George Cree (102)
Chapter 2

Chapter 2 Neural Basis for Cognition (up to Visual System)

4 Pages
Unlock Document

University of Toronto Scarborough
George Cree

2 The Neural Basis for Cognition Capgras Syndrome An Initial ExampleCapgras Syndrome a rare disorder resulting from specific forms of brain damage in which the afflicted person recognizes the people in his or her world but denies that they are two they appear to be instead the person insists these familiar individuals are welldisguised impostorsCan accompany Alzheimers but can result from various injuries to the brainLies in the fact that facial recognition involves 2 separate systems in the brain one which leads to a cognitive appraisal and the other a more global somewhat emotional concordance of these two appraisals then leads to the certainty of recognitionYou resemble my father but you trigger no sense of familiarity so you must be someone else The Neural Basis for Capgras SyndromeExamination of Capgras brains is made possible neuroimaging techniquesPET scans showing multiple abnormalities in the brain tissue in several brain areasOne site of damage is temporal lobe on right side of the head disrupts circuits involving the amygdalaseems to serve s an emotional evaluator to help detect threatdanger stimuli also involved in detecting positive stimuli that are indicators of rewardsafetytogether amygdala responsible to you look familiar and you trigger a warm emotional feelingAlso right prefrontal cortex which in fMRI studies of schizophrenic patients with the same damage has shown to give experience of hallucinations diminished activity in the frontal lobesreflects a decreased ability to distinguish internal events thoughts from external ones voices or to distinguish imagined events from real onespeople with Capgras What Do We Learn From Capgras SyndromeRecognition has 2 separate parts factual and emotionalAmygdala plays a crucial role in supporting the feeling of familiarity and also plays a central part in helping people remember the emotional events of their lives The Principal Structure of the BrainTrillion nerve cells of the brain each connected to 10000 others Hindbrain Midbrain ForebrainHindbrainsits atop the spinal cord and includes several structures crucial for controlling key life functionsRhythm of heartbeats and breathing maintaining bodys overall tone maintain bodys posture and balance and helps regulate the brains level of alertnessLargest area here is the cerebellumCerebellum crucial for coordination of bodily movements and balanceRecent studies show a diverse set of other roles damage causing problems in spatial reasoning in discriminating sounds and in integrating the input received from various sensory systemsMidbrain plays an important role in coordinating movements and it also contains structures that serve as relay stations for information arriving from the sensory organsCircuits that relay auditory information from the ears to the areas in the forebrain where this information is processed and interpreted other structures in the midbrain help to regulate our experience of painForebrain plays a crucial role in supporting intellectual functioningOuter surface of the forebrain is the cortex the outermost surface of the brain
More Less

Related notes for PSYB57H3

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.