Select the correct answer for each question, explain your reasoning for your ans

Question

Select the correct answer for each question, explain your reasoning for your answer to each question.

1. A mouse is subjected to training while in a chamber with an electric grid on the floor that can deliver shocks to the mouse’s feet. Whenever a blue light appears in the chamber, the mouse is given a shock, which elicits a freezing response in the mouse. How would you expect the mouse to behave after the training session?

A. The animal will display freezing behavior constantly regardless of stimulus.
B. The animal will stop freezing in response to the shocks.
C. The animal will freeze in response to the blue light alone.
D. The animal will continue to freeze in response to the shock, but not to the blue light alone.

2. Which evidence best supports the idea that long-term declarative memories are not stored in the hippocampus?

A. H.M. could learn to play the piano.
B. Rats cannot learn to find an underwater platform if the hippocampus has been lesioned prior to testing.
C. Electroconvulsive therapy can lead to retrograde amnesia.
D. H.M. could recall memories from his childhood.

.

Explanation / Answer

Ans 1

C. The animal will freeze in response to the blue light alone.

Due to mouse were fear conditioned to a context using the blue light with electic shock. after this repeted shock proces, Similar acquisition and consolidation of fear memories developed in mouse brain. So mouse will freeze in response to blue light without electric shock.

Ans 2.

A. H.M. could learn to play the piano.

Declarative memories are encod by the hippocampus, entorhinal cortex and perirhinal cortex (all within the medial temporal lobe of the brain). But that are consolidated and stored in the temporal cortex.

Procedural memories are not related to the hippocampus, are encoded and stored by the cerebellum, putamen, caudate nucleus and the motor cortex, all of which are involved in motor control.

A person which havenot hippocapmus, but he is still able to form new procedural memories (such as playing the piano), but cannot remember the events during which they happened or were learned.

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