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Startle potentiation in aversive anticipation: evidence for state but not trait effects.
Psychophysiology. 2002 Mar; 39(2):254-8.P

Abstract

The present study was undertaken to determine whether aversiveness contributes to startle potentiation in anticipation of affective pictures above and beyond the effects of emotional arousal. Further, participants high in trait anxious apprehension, which is characterized by worry about the future, were expected to show especially pronounced anticipatory startle responses. Startle blink reflex was measured during warning stimuli that predicted the valence of ensuing aversive/unpleasant, pleasant, or neutral pictures. Startle magnitude was larger in anticipation of aversive than of pleasant pictures and smallest in anticipation of neutral pictures. Enhanced startle potentiation was not found in anxious apprehension subjects. These data suggest that the aversive nature of stimuli contribute to the potentiation of startle above and beyond the effects of emotional arousal, which may be a universal phenomenon not modulated by individual differences.

Authors+Show Affiliations

Department of Psychology, University of Wisconsin, Madison 53706-1696, USA. jnitschke@facstaff.wisc.eduNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Journal Article
Research Support, U.S. Gov't, P.H.S.

Language

eng

PubMed ID

12212676

Citation

Nitschke, Jack B., et al. "Startle Potentiation in Aversive Anticipation: Evidence for State but Not Trait Effects." Psychophysiology, vol. 39, no. 2, 2002, pp. 254-8.
Nitschke JB, Larson CL, Smoller MJ, et al. Startle potentiation in aversive anticipation: evidence for state but not trait effects. Psychophysiology. 2002;39(2):254-8.
Nitschke, J. B., Larson, C. L., Smoller, M. J., Navin, S. D., Pederson, A. J., Ruffalo, D., Mackiewicz, K. L., Gray, S. M., Victor, E., & Davidson, R. J. (2002). Startle potentiation in aversive anticipation: evidence for state but not trait effects. Psychophysiology, 39(2), 254-8.
Nitschke JB, et al. Startle Potentiation in Aversive Anticipation: Evidence for State but Not Trait Effects. Psychophysiology. 2002;39(2):254-8. PubMed PMID: 12212676.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Startle potentiation in aversive anticipation: evidence for state but not trait effects. AU - Nitschke,Jack B, AU - Larson,Christine L, AU - Smoller,Marian J, AU - Navin,Sarah D, AU - Pederson,Adrian J C, AU - Ruffalo,Dante, AU - Mackiewicz,Kristen L, AU - Gray,Shannon M, AU - Victor,Elise, AU - Davidson,Richard J, PY - 2002/9/6/pubmed PY - 2002/10/3/medline PY - 2002/9/6/entrez SP - 254 EP - 8 JF - Psychophysiology JO - Psychophysiology VL - 39 IS - 2 N2 - The present study was undertaken to determine whether aversiveness contributes to startle potentiation in anticipation of affective pictures above and beyond the effects of emotional arousal. Further, participants high in trait anxious apprehension, which is characterized by worry about the future, were expected to show especially pronounced anticipatory startle responses. Startle blink reflex was measured during warning stimuli that predicted the valence of ensuing aversive/unpleasant, pleasant, or neutral pictures. Startle magnitude was larger in anticipation of aversive than of pleasant pictures and smallest in anticipation of neutral pictures. Enhanced startle potentiation was not found in anxious apprehension subjects. These data suggest that the aversive nature of stimuli contribute to the potentiation of startle above and beyond the effects of emotional arousal, which may be a universal phenomenon not modulated by individual differences. SN - 0048-5772 UR - https://www.unboundmedicine.com/medline/citation/12212676/Startle_potentiation_in_aversive_anticipation:_evidence_for_state_but_not_trait_effects_ DB - PRIME DP - Unbound Medicine ER -