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Related Experiment Video

Updated: Apr 3, 2026

Habituation and Prepulse Inhibition of Acoustic Startle in Rodents

Habituation and Prepulse Inhibition of Acoustic Startle in Rodents

Published on: September 1, 2011

Prediction and perception: Defensive startle modulation.

Christopher T Sege¹, Margaret M Bradley¹, Peter J Lang¹

¹Center for the Study of Emotion and Attention, University of Florida, Gainesville, Florida, USA.

Psychophysiology

|September 25, 2015

Summary

This summary is machine-generated.

Predictive cues reduce defensive reactions to violence by triggering anticipatory coping. However, these cues do not alter the startle reflex to romance/erotica, suggesting cue effects are specific to aversive stimuli.

Keywords:

Anticipation Emotion Perception Pictures Startle

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Last Updated: Apr 3, 2026

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Area of Science:

Cognitive Neuroscience
Psychophysiology
Emotional Reactivity

Background:

Predictive cues can modulate defensive responses.
Emotional reactivity is often measured using the blink startle reflex.
Previous research suggests cueing can dampen defensive reactions.

Purpose of the Study:

To investigate if cueing effects on defensive reactions are specific to aversive stimuli.
To examine the role of predictive cues in modulating emotional reactivity.
To assess the impact of cues on blink startle reflex to different content types.

Main Methods:

Participants viewed images of violence, romance/erotica, or mundane content.
A predictive cue (color) preceded image presentation on half of the trials.
Acoustic startle probes measured blink reflexes during image viewing.

Main Results:

Uncued violent images potentiated blink reflexes compared to mundane images.
Uncued erotic/romantic images attenuated blink reflexes.
Predictive cues eliminated reflex potentiation for violent images.
Cues did not alter reflex attenuation for erotic/romantic images.

Conclusions:

Anticipatory coping processes triggered by predictive cues are specific to aversive stimuli.
Cueing modulates emotional reactivity, particularly for negative content.
The blink startle reflex is a sensitive measure for studying cueing effects on emotional responses.