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Physiology

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Central Nervous System

Question
4 out of 14
 

Conversion of short term - memory into long term memory occurs in: (AIPG 2007)



A Amygdala
B Hippocampus

C Frontal cortex
D Hypothalamus

Ans. B Hippocampus

I. Expl: Memory function includes:

a. Registration (encoding or acquisition) b. Retention (storage or consolidation)

c. Stabilization d. Retrieval (decoding or recall)

II. The process of encoding depends on frontal lobe and hippocampal cortex while the process of retreival requires the frontal lobe. When the subject recalls words there is increased activity in their right frontal lobe and para hippocampal cortex on both sides.

III. Hippocampal complex is responsible for episodic memory. Ganong states: "while the encoding process for short term explicit memory involves the hippocampus, long term memory is stored in various part of neocortex."

IV. "Acc to current views information from the senses is temporarily stored in various parts as working memory which is relayed to the medial temporal lobe, and specifically to the parahippocampalgyrusFrom there, it enters the hippocampus. Output from the hippocampus leaves via subiculum and the entorhinal cortex and somehow binds together and strengthens the circuit in neocortex forming over time the stable remote memories.'

V. Bijlani states "Hippocampus is responsible for immediate memory and for selecting the experiences which need to be transferred to long term memory." This leaves no doubt about the answer.

Central Nervous System Flashcard List

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