Class Notes (839,626)
Canada (511,431)
Psychology (7,818)
PSYC55H3 (34)
Andy Lee (27)
Lecture 10


4 Pages

Course Code
Andy Lee

This preview shows page 1. Sign up to view the full 4 pages of the document.
Emotion: Anatomical considerations  Papez argues that all these structures are interconnected  Maclean- added certain structures to papez circuit  Now collectively known as limbic system The amygdale  Sits in front of the hippocampus  Consists of multiple nuclei and connects to multiple regions in the brain  Kluver-bucy syndrome- if you take out front of temporal lobe- extremely tame, lack fear, social hierarchy becomes disrupted, no endogenous behaviour, sexual behaviour changes, visual agnosia, the way they explore objects changed- they explored orally  If u selectively lesion amygdala- you get specific type of impairments not whole symptoms  Selective amygdale lesion- rhesus monkeys  Examined behaviour 6-8 months later  Exhibited different behaviours  Normal monkeys- demonstrate neophobia  Amygada lesion- no fear, explored the new things  Control monkeys- food presented own- quick response, by rubber snake- takes time  Lesion monkeys- irrespective whether alone or with snake, monkeys go right ahead and grab the food  First demonstration of amygdale lesion  Role of amygdale in fear processing? Acquiring fear and learning about it  All species demonstrate fear conditioning  Implicitly learn that something is associated with punishment we avoid that- fear conditioning  Before training- show light, no response  In a box give foot shock- very natural startle response, loud noise- startle response  During training- light with a shock- implicitly learns light is associated with shock  Light alone- rat begins to jump  Make the rat jump more by presenting light and shock simultaneously  Le doux- if you lesion amygadala bilaterally- u demolish fear conditioning  2 groups to fear conditioning- direct and indirect  Tone with a shock- rapid quick association – direct- processed subcortically  Slower –indirect- processed by cortical structures  Human evidence- genetic disorder- causes calcification shows lesion in amygdale  SM- Bechara- first condition- fear conditioning- conditioned to learn the blue square with shock – sweat and show fear response  Instructed bias- explicitly said that blue square was associated with shock  Controls- skin conductance response- conditioning- they do show skin conductance response greater than non shocked  SM doesn’t show conditioned response to the shock associated with square but can learn if told explicitly – non-dec intact  WC- had lesions to hippocampus and not amygdale- had no problem demonstrating fear conditioning but was unable to learn by declarative memory  RH- shows implicit and explicit of learning fear impaired  SM- abolishment of implicit fear conditioning response  Just fear conditioning?  Adolphs- showed photographs of pics- tell the expression- what they found is that patient with damage to outside to amygdale correlated with control subjects  SM- specific problem in recognizing expressions from the faces  Scale left- how well it correlates with controls  Both groups of patients perform similarly for except fear- SM struggle to recognize fear and rate the intense of fear  Patient dr- Scott- taking tissue from the amygdale due to epilepsy  Can patient dr recognize fear by auditory stimulus  Played sounds- asked subjects  When sounds were fearful and anger- all other emotions patient df was able to recongize  Had difficulty finding fearful and anger words  SM- they looked at her eye movements- whenever patient looks at faces- she doesn’t look at eyes  Forced to make her look at the eyes- what they found- irrespective whether she looks at the eye or not. Performance on other than f
More Less
Unlock Document

Only page 1 are available for preview. Some parts have been intentionally blurred.

Unlock Document
You're Reading a Preview

Unlock to view full version

Unlock Document

Log In


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.