Written by the Fiveable Content Team • Last updated August 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated August 2025
Definition
Being under stimulated refers to not receiving enough appropriate sensory experiences or stimulation during a particular developmental stage. In Freud's oral stage, under stimulation can lead to frustration and aggression in adulthood.
Frustration-aggression hypothesis: The theory that frustration leads to aggression as individuals try to relieve their pent-up energy or achieve their desired goals.
Sensory deprivation: A condition where an individual lacks normal patterns of sensory input, leading to cognitive and perceptual disturbances.