Class Notes (1,049,977)
US (413,504)
Tufts (960)
PSY (194)
PSY-0001 (107)

PSY-0001 Lecture Notes - Propranolol, Striatum

7 pages36 viewsFall 2012

Course Code
Sam Sommers

This preview shows pages 1-2. to view the full 7 pages of the document.
Memory 04/15/2014
Sensory memory  Short-term/working memory  Long-term memory
Long-Term Memory Systems
Explicit (conscious)
Memory for episodes, experiences
Includes time and place that it occurred
Ex. Memory of 16th birthday
Memory for information/knowledge and facts
Not tied to specific time or place
Ex. meaning of words, rules of a game
Implicit (non-conscious)
Memory for motor procedures (muscle memory)  get better over time
Ex. learn to ride a bike and then ride again after years, mirror tracing
Classical conditioning
Conditioned responses (don’t need to explicitly remember for this to occur)
H. M. Patient
You're Reading a Preview

Unlock to view full version

Only half of the first page are available for preview. Some parts have been intentionally blurred.

No left or right hippocampus
Serious problems with explicit memory
Remote episodic and semantic memory
Couldn’t encode new explicit memory
Implicit memory intact  different brain system: striatum
Emotional Memory
Emotionally arousing events or stimuli are remembered better than non-arousing ones
Studied in rodents and humans
“Emotional modulation of memory” – memory can be boosted by emotional arousal
Strong emotions are a sign that something important is occurring (so good to remember)
Important for safety (e.g., remembering that you heard gun shots in a neighborhood so that you avoid that
Biology of what happens in an emotionally arousing situation
Epinephrine & norepinephrine (NE) release (aka adrenaline & noradrenaline)
Cortisol release (stress hormones)NE and cortisol bind to (different) receptors in the amygdala
Signals hippocampus to increase memory encoding
To study this: researchers can manipulate these brain structures and neurotransmitters and observe
changes in emotional memory
Bilateral amygdala lesions (in animals)
Only impair boost in memory, not memory in general
You're Reading a Preview

Unlock to view full version

Loved by over 2.2 million students

Over 90% improved by at least one letter grade.