5th para

Question 1

What does stress do to the brain in short-term?

Answer 1

• Contribute to increased alertness during stress

* Aid future responses by enhancing memory of the arousing experience

Question 2

What are the effects of acute stress and memory?

Cahill and Mcgaugh (1998)

Answer 2

•Short-term increases in adrenal hormones can facilitate formation of memories of emotional events (Cahill and McGaugh 1998)
•In animals, post-training injections of adrenaline enhanced memory for that training
In animals, infusion of glucocorticoid agonists into the hippocampus after training improves memory

Question 3

What did McGaugh (2000) find?

Answer 3

• Stress hormones enhance emotional memories by enhancing synaptic plasticity in areas involved in memory
• Activation of the amygdala is a crucial component of this process

Question 4

What are effects of chronic stress and memory?

Kim and Diamond, 2002 study

Answer 4

Long-term increases in stress hormones can inhibit synaptic plasticity in the same circuitry, damage neurons and impair memory

Question 5

Effects of chronic stress and memory?

Thompson et al, 1987

Answer 5

Impairments of long-term potentiation (LTP) in hippocampi of rats exposed to chronic stress