Course Hero Logo

Ch2.The Neural Basis for Cognition.pdf - 1 Today’s lecture...

Course Hero uses AI to attempt to automatically extract content from documents to surface to you and others so you can study better, e.g., in search results, to enrich docs, and more. This preview shows page 1 - 9 out of 44 pages.

1
Today’s lecture we will talk about the neural basis for cognition. You will see todaythat most things discussed are going to be at the surface level. These first lectures aregiving you a broad understanding of cognition, come to our next lecture we will begetting into specifics starting with vision.
Capgras syndrome tells us a lot about cognition.So for example, one might say “You look like my father, sound like him, and act likehim. But I can tell that you’re not my father!Who are you?Often, a person with Capgras syndrome insists that there are slight differencesbetween the “impostor” and the person they are supposedly replacing: subtlechanges in personality or appearance. Of course, no one else detects these(nonexistent) differences.3
Capgras syndrome4
Here is an example with normal facial recognition... Facial recognition involves twosystems in the brain.One system leads to a cognitive appraisal (“I know what my father looks like, and Ican perceive that you closely resemble him”), and the other to a more global,emotional appraisal (“You look familiar to me and also trigger a warm response inme”). When these two appraisals agree, the result is a confident recognition (“Youobviously are my father”).5
However, when there is conflict between cognitive appraisal and emotional appraisal,this leads to the absence of recognitionSo how does this happen? Well there are multiple ways, but the most prominent is ..6
So how does this happen? Well there are multiple ways, but the most prominent is ..Damage to the connections between the amygdala and FFA (temporal lobe)Amygdala: emotional center of the brainTemporal lobe: facial recognition areasPatients recognize the person, but do not feel emotionally connectedto the person, so they believe the person is an imposterThe area shown in yellow marks the location of the amygdala. In this image, theyellow is a reflection of increased activity created by a fear memory — the memoryof receiving an electric shock.What do we learn from CAPGRAS?7
Impairments in feelings of familiarity, memory for emotional events, and emotionaldecision making suggest that the amygdala serves as an “emotional evaluator.”The simplest fact illustrated by Capgras syndrome is that different parts of the brainperform different jobs.For example, in recognizing your father: recognition is based on factual information(one part of the brain), visual analysis (another part), matching memory with imagesin the world (a third area), and so on.8

Upload your study docs or become a

Course Hero member to access this document

Upload your study docs or become a

Course Hero member to access this document

End of preview. Want to read all 44 pages?

Upload your study docs or become a

Course Hero member to access this document

Term
Summer
Professor
Evelina Tapia
Tags
temporal lobe, Capgras

Newly uploaded documents

Show More

Newly uploaded documents

Show More

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture