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A Researcher,several Times a Day,sounds a Tone in a Monkey's

question 110

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A researcher,several times a day,sounds a tone in a monkey's cage,then proceeds not to present a further stimulus.Later the researcher sounds a tone and drops nuts into the monkey's food dish.Despite the repetition of this tone-and-nuts presentation,the monkey has difficulty learning this association.This phenomenon is known as ____.


Definitions:

Dorsiflex

The action of pulling the toes or foot upwards towards the shin, decreasing the angle between the dorsum of the foot and the leg.

Plantarflex

The downward movement of the foot at the ankle, away from the leg, which helps in walking, running, or pushing an object like a pedal.

Swan-Neck Deformities

A finger deformity characterized by hyperextension of the proximal interphalangeal joint and flexion of the distal interphalangeal joint, often seen in rheumatoid arthritis.

Bouchard Nodules

Hard, bony outgrowths or nodules located on the proximal interphalangeal joints, often associated with osteoarthritis.

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