14. An investigator studying learning and memory classically conditions a rat to

Question

14. An investigator studying learning and memory classically conditions a rat to salivate in response to a 10,000 Hz tone, paired with a tasty treat, while inside a training room. The investigator then localizes the point in the brain in which the auditory signal from the tone meets the motor output (i.e. for salivation): she lesions that brain area and the rat no longer salivates in response to the tone. The experimenter then argues that this brain site is where the memory is located. a. Describe a situation in which the tone stimulus may NOT cause the rat to salivate. b. Describe a situation in which the rat may salivate in response to a different stimulus. c. Explain why the investigator's interpretation about the site of memory might be incorrect. Give a few specific examples (e.g. by metaphor - Sigmunda story- or by specific evidence, e.g. instances of brain reorganization after damage; logic of lesion or blocking method). 15. Williams James offered thoughts 1900 that have important implications for how one might study the neurobiology of memory. Describe some of the specific implications of some (2-3) of James' views for the neurobiology of memory.

Explanation / Answer

a) when lesion is created in the sensory region of brain which receives signals from the ears ( auditory sensory region).

b) when it is exposed to odour of the tasty treat.

c) she might be incorrect because she might have lesioned an auditory sensory area which likely would have caused the impairment of the salivation response or instead memory the sound /vibrations are simply stimulating the suspected neurons causing them to fire at the higher rate resulting in salivation.

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