medium · MCAT psych-soc
According to the 'two-factor' model of emotion mentioned if an individual experience physiological arousal and then labels that arousal based on environmental cues, this is an example of 'top-down' processing.
How does this 'top-down' influence relate to Signal Detection Theory?
- It establishes a fixed, unchanging absolute threshold for detecting emotional stimuli reliably.
- Environmental context shifts the response criterion by providing cues about what signal to expect.
- It decreases the internal noise variance in the neural system, sharpening sensitivity without shifting judgment.
- Physiological arousal directly increases the raw sensitivity (d') of the sensory receptors themselves.
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