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Fear‐potentiated startle conditioning in humans: Explicit and contextual cue conditioning following paired versus unpaired training

GRILLON, CHRISTIAN, DAVIS, MICHAEL·1997·Psychophysiology

Abstract

Conditioned fear in response to explicit and contextual cues was examined using the startle reflex in three groups of participants over two sessions separated by 4–5 days. The conditioned stimulus (CS) was paired with an aversive unconditioned stimulus (US) (shock) during conditioning in the paired but not in the unpaired group. In the reaction time (RT) group, the US was a nonaversive visual signal for an RT task. In the paired group, the CS potentiated startle in the postconditioning phase. This conditioned response was fully retained over the retention interval. There was no substantial change in baseline startle (startle delivered in the absence of CS). By contrast, startle was not potentiated by the CS in the unpaired group, but baseline startle was increased from Session 1 to Session 2. In the RT group, startle was not affected by the CS, and baseline startle was reduced from Session 1 to Session 2. These results suggest that paired presentations of a CS and an aversive US result in conditioned fear in response to the CS but little contextual fear, whereas unpaired presentations of a CS and US leads to poor explicit cue conditioning but substantial contextual fear.

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Metadata

Authors
GRILLON, C., & DAVIS, M.
Venue
Psychophysiology
Publisher
Wiley
Published
1997-07
Volume
34
Issue
4
Pages
451-458
ISSN
  • 0048-5772 (ISSN-L)
  • 1469-8986
OpenAlex
W2133029319
Cited by
220
References
10
FWCI
3.35
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Fear‐potentiated startle conditioning in humans: Explicit and contextual cue conditioning following paired versus unpaired training. https://app.cochat.ai/papers/10.1111/j.1469-8986.1997.tb02389.x
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GRILLON, C., & DAVIS, M. (1997). Fear‐potentiated startle conditioning in humans: Explicit and contextual cue conditioning following paired versus unpaired training. Psychophysiology. https://doi.org/10.1111/j.1469-8986.1997.tb02389.x

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