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Topic 15
Fear Memories
21
Other
Undergraduate 4
04/17/2017

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Term
A poorly localized or identifiable threat source, such as sound in the night, may elicit _____
Definition
an active immobility so profound that the frightened person can hardly speak and/or breath, i.e. freezing
Term
If a danger source has been localized & an avenue for flight or concealment is plausible --> ?
Definition
the person will probably try to flee or hide
Term
Actual contact, particularly painful contact, with the threat source is likely to elicit _____
Definition
thrashing, biting, scratching, & other potentially damaging activities by the terrified person
Term
2 examples of autonomic arousal
Definition
heart rate & blood pressure
Term
Release of endorphins is associated with what fear response?
Definition
analgesia, freezing
Term
Are the perirhinal & postrhinal involved in the storage, maintenance, and/or retrieval of the memory of contextual fear for at least 100 days after learning?
Definition
yes!
Term
instrumental conditioning AKA operant conditioning
Definition
a form of learning in which an individual's behavior is modified by its consequences
Term
What were the results of the instrumental shuttle-box escape task?
Definition
The latency of rats that were classically conditioned to learn the response that terminates the CS to cross to the other side decreases over trials, whereas the latency of control rats (if anything) increases
Term
Rats with damage to both the central & lateral nuclei of the amygdala, but not to the basal nucleus, exhibit _____
Definition
impaired conditioned freezing
Term
Damage to the basal & lateral nuclei, but not to the central nucleus, causes _____
Definition
impaired performance on the instrumental shuttle-box escape task
Term
2 ways a memory trace can be put into the short term active state
Definition
1. novel experiences generate new active memory traces
2. retrieving or reactivating existing long term memory traces will return these traces to the short-term active state
Term
Memories in the _____ state are vulnerable to disruption
Definition
active
Term
4 concerns when assessing reconsolidation theory
Definition
1. researchers confuse the fact that reactivated memories might be disrupted with the theory of reconsolidation
2. many reports state that reactivated memories are not disrupted by anisomycin
3. sometimes the impairment is only temporary
4. anisomycin can disrupt memories for many reasons
Term
renewal effect
Definition
spontaneous recovery can occur when there is a long time interval in between extinction & the test
Term
How is the renewal effect contextual?
Definition
Renewal can occur when the context in which extinction trials occur is different than the context in which training occurs & the test occurs in the training context
Term
When does reinstatement occur?
Definition
if the US is re-presented without the CS
Term
The NMDAR activation plays a central role in the new learning that produces ______
Definition
extinction
Term
two NMDAR binding sites
Definition
one for glutamate & one for glycine
Term
APV antagonizes the NMDAR glutamate binding site & interferes with ______
Definition
extinction
Term
D-cycloserine is an agonist for _____
Definition
the NMDAR glycine binding site
Term
What happens when D-cycloserine is given before or after extinction training?
Definition
it facilitates the processes that lead to extinction
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