Task 7 - Amygdala

Question 1

Amygdala

Function

Answer 1

• Connected to the OFC
• Responsible for affective value of stimuli and involved in updating value of stimuli
• Can also modulate attention by connection with IT/PRh

Question 2

De Martino et al. (2006)

Answer 2

• Participants chose between a sure option and a gamble with higher wins
• The first option was framed differently (“Keep 20$” or “loose 30$”)
• The Amygdala activated during biased choices (consistent with framing effect)
• vmPFC is more active in people who are less influenced by framing

Question 3

Conclusion - De Martino et al. (2006)

Answer 3

• Shows that loss aversion might be caused by amygdala
• vmPFC helps regulate this bias

Question 4

Reversal learning

Answer 4

Learns that stimulus is associated with reward and then has to unlearn

Question 5

Murray’s model of amygdala functioning

Answer 5

1. Amygdala tag events/objects/options with affective value
2. Sends this tag to LOFC
3. LOFC integrates this information with other aspects of value
4. Integrated information is stored in vmPFC