SLUG

Question 1

What is the most imporatnt enviornment factor that alters behaviour and define it?

Answer 1

Learning - a relatively permanent change in behaviour as a result of experience

Question 2

What is non-associative learning?

Answer 2

It allows animsals to learn about the properties of stimui they encounter

Question 3

What is associative learning?

Answer 3

Allows animals to learn about hte relationship from one stimulus to another (Pavlovain conditioning) or between a stimulus and an animals’s action (instrumental conditioning)

Question 4

what was an early propposal of memory and who proivided evidence against this?

Answer 4

Result of reverberating circuits - Squire et al, 1975

Question 5

What is habituation?

Answer 5

Decrease in response to a repeatedly presented non-noxious stimulus

Question 6

What is dishabituation?

Answer 6

Restoration of normal responding toa stimulus following its intensse presentation

Question 7

What is sensitisation?

Answer 7

An enhanced response to a range of stimuli following an intense or noxious stimulus

Question 8

What is the slug?

Answer 8

Aplysia/marine slug/sea hare. Coastal California. 15-20 cm long. Very small amount of neurons - about 20 000 compared to 750 million in humans

Question 9

How does the gill withdrawl response manipulation work?

Answer 9

Touch mantle shelf/siphon (US) – gill and siphon withdraw uner mantle (UR)

Question 10

What is the habituation and dishabiutation and sensitisation re gill withdrawal relfex?

Answer 10

Habituation - tactile stimulus to siphon delivered every 90 secs. Useful = waves
Dishabiutation – floow this with tail shock
Sensitisation – measure effect of tail shock on unhabituated reflex such as siphon touch

Question 11

Read notes about all this slug habituation

Answer 11

too muc to write

Question 12

How does ssensitisation differ from conditionig?

Answer 12

It doesn’t require the animal to expect any particular outcome (sensitisation broadly enhacnes response)

Question 13

What is alpha conditioning?

Answer 13

A very specific type of associative learning (modification of an existing reflex)

Question 14

What is kindling?

Answer 14

Model of epilepsy (can be artificially induced) in which prior stimulation increases the likelihood of neurons firing. Idea that with a strong stimulation to a whole population of neurons you can alter the sensitivity of hte neurons to firing in the future

Question 15

What did Bliss & Lomo (1973) do?

Answer 15

They isolated slices of rabbit hippocampus. ESPS pre tetonic stimulation = small
Post stimulation = bigger
Week/month later = still big