Explanation on a couple of prac exam questions

[matt123]

can just imagine, MC Q1 "which of these is most resistant to extinction" :buck2:

Dude, it's going to happen :\
I'm saying Variable Interval though.
But it'll be wrong, and i'll yet again want to murder VCAA in all their shittiness.

They wont ask it.
and if they do

im sticking with Variable interval.

[sillysmile]

can just imagine, MC Q1 "which of these is most resistant to extinction" :buck2:

Dude, it's going to happen :\
I'm saying Variable Interval though.
But it'll be wrong, and i'll yet again want to murder VCAA in all their shittiness.

They wont ask it.
and if they do

im sticking with Variable interval.

same here,
for anybody who is unsure of which is correct, try this:
pretend you don't have any knowledge of the different schedules of reinfocement, which would you make an educated assumption to be more resistant to extinction?
when I try that, variable interval seems to make a lot more sense.

[zomgSEAN]

Well, look at it this way; Fixed-Ratio is the easiest to extinguish; it would only make sense for the absolute opposite to be the hardest to extinguish. And that is Variable-Interval.

[masonnnn]

more likely they'll just ask what is most useful in acquisition or something, if everyone's disagreeing on this(even differing textbooks) then i doubt they'd do a question on it as everyone would complain and hopefully they'd just give everyone the mark.

OR then again, on many biology exams(ie this midyear) they've left horrible, badly written, crap questions unexplained.
oh vcaa.

[jinny1]

What would be the UCS in a typical example of taste aversion/one - trial learning??

[sillysmile]

What would be the UCS in a typical example of taste aversion/one - trial learning??

nausea causing bacteria in the food that was eaten.

[jinny1]

What would be the UCS in a typical example of taste aversion/one - trial learning??

nausea causing bacteria in the food that was eaten.

ahh thats what i kinda thought....

thanks

so there is an association between the bacteria and the food right ?? not an association between the food and a feeling of nausea??

[sillysmile]

What would be the UCS in a typical example of taste aversion/one - trial learning??

nausea causing bacteria in the food that was eaten.

ahh thats what i kinda thought....

thanks

so there is an association between the bacteria and the food right ?? not an association between the food and a feeling of nausea??

yeah, the NS is the food
the UCS is the bacteria in the food
and the NS becomes the CS when it is paired/associated with the UCS

also: the UCS evokes the UCR, while the CS evokes the CR.

[jinny1]

Hey sillysmile in the grivas textbook the definition for taste aversion is : " A Conditioned response that results from a person or animal establishing an association between a particular food and being or feeling ill after having consumed it at some time in the past."

they are telling me a different thing!!!! i know you are correct but why is this textbook saying there is an association between CS and CR??

[sillysmile]

that's true, but they mean a different thing,
I'll explain:
there is an association between the CS and UCS which
associates the CS with the CR.
make sense?

[jinny1]

ok there are two associations right?? and i wont get marks deducted for stating the grivas definition in the exam?

[sillysmile]

ok there are two associations right?? and i wont get marks deducted for stating the grivas definition in the exam?

you must provide an answer that is relevant to the question, for example:
classical conditioning relies on the repeated associations of what?

[jinny1]

two or more stimuli

[sillysmile]

two or more stimuli

yep, but what are these specific stimuli called?

[matt123]

two or more stimuli

yep, but what are these specific stimuli called?

Sorry to interupt.
I think its better to say.

" In classical conditioning there is repeated or successive pairings of the NEUTRAL stimulus and the UCS" , thus after the acquisition period , the NS becomes the CS which elicits a CR.