Taste aversion and biological preparedness
Rats made nauseated hours after drinking flavored water avoid that flavor after a single pairing, but they do not learn to avoid a light paired with the same nausea. This finding shows:
Answer D: explanation for every choice
A
Taste aversion forms despite a delay of hours.
B
The light and flavor were conditioned very differently, so stimuli are not equal.
C
The aversion formed after a single pairing.
D
Correct. Garcia showed that taste and illness are readily linked, even across long delays, while light and illness are not.
TakeawayTaste aversion: one trial, long delay, and a biologically prepared link to illness.
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Reviewed 2026-11-05 by a medical student. Spot an error? Report it with question ID ps101.