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Aversive associative conditioning of prepulses in a startle inhibition paradigm.

Identifieur interne : 000584 ( PubMed/Corpus ); précédent : 000583; suivant : 000585

Aversive associative conditioning of prepulses in a startle inhibition paradigm.

Auteurs : Frauke Nees ; Melanie Hahn ; André Schulz ; Terry D. Blumenthal ; Hartmut Sch Chinger

Source :

Psychophysiology [ 1540-5958 ] ; 2009.

RBID : pubmed:19226308

English descriptors

KwdEn :
- Adolescent, Adult, Association Learning (physiology), Attention (physiology), Conditioning, Eyelid (physiology), Data Interpretation, Statistical, Electromyography, Extinction, Psychological (physiology), Female, Galvanic Skin Response (physiology), Humans, Male, Reflex, Startle (physiology), Young Adult.
MESH :
- physiology : Association Learning, Attention, Conditioning, Eyelid, Extinction, Psychological, Galvanic Skin Response, Reflex, Startle.
- Adolescent, Adult, Data Interpretation, Statistical, Electromyography, Female, Humans, Male, Young Adult.

Abstract

Prepulse inhibition of startle (PPI) represents an automatic mechanism that reflects sensorimotor gating and early attention processes. PPI neither is the consequence of conscious behavioral modulation nor does it depend on learning and conditioning. However, pairing of weak tones and aversive startle stimuli during PPI testing may induce associative learning. Thus, in the present study (n=60) we tested whether prepulses may be subject to aversive conditioning. Eyeblink EMG and electrodermal responses to intense (100 dB) acoustic stimuli, presented either alone or preceded by weak tones (prepulses, 50 ms, 70 dB, SOA=120 ms), were measured. We found that after strong contingent pairing of weak tones with startle stimuli (PPI paradigm) intense versions of these tones induced significantly larger eyeblink and skin conductance responses than did never paired control tones. We conclude that during PPI testing, prepulses may be subject to aversive conditioning.

DOI: 10.1111/j.1469-8986.2009.00792.x
PubMed: 19226308

Links to Exploration step

pubmed:19226308

Le document en format XML

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<author><name sortKey="Nees, Frauke" sort="Nees, Frauke" uniqKey="Nees F" first="Frauke" last="Nees">Frauke Nees</name>
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<author><name sortKey="Hahn, Melanie" sort="Hahn, Melanie" uniqKey="Hahn M" first="Melanie" last="Hahn">Melanie Hahn</name>
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<author><name sortKey="Schulz, Andre" sort="Schulz, Andre" uniqKey="Schulz A" first="André" last="Schulz">André Schulz</name>
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<author><name sortKey="Blumenthal, Terry D" sort="Blumenthal, Terry D" uniqKey="Blumenthal T" first="Terry D" last="Blumenthal">Terry D. Blumenthal</name>
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<author><name sortKey="Sch Chinger, Hartmut" sort="Sch Chinger, Hartmut" uniqKey="Sch Chinger H" first="Hartmut" last="Sch Chinger">Hartmut Sch Chinger</name>
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<front><div type="abstract" xml:lang="en">Prepulse inhibition of startle (PPI) represents an automatic mechanism that reflects sensorimotor gating and early attention processes. PPI neither is the consequence of conscious behavioral modulation nor does it depend on learning and conditioning. However, pairing of weak tones and aversive startle stimuli during PPI testing may induce associative learning. Thus, in the present study (n=60) we tested whether prepulses may be subject to aversive conditioning. Eyeblink EMG and electrodermal responses to intense (100 dB) acoustic stimuli, presented either alone or preceded by weak tones (prepulses, 50 ms, 70 dB, SOA=120 ms), were measured. We found that after strong contingent pairing of weak tones with startle stimuli (PPI paradigm) intense versions of these tones induced significantly larger eyeblink and skin conductance responses than did never paired control tones. We conclude that during PPI testing, prepulses may be subject to aversive conditioning.</div>
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<Abstract><AbstractText>Prepulse inhibition of startle (PPI) represents an automatic mechanism that reflects sensorimotor gating and early attention processes. PPI neither is the consequence of conscious behavioral modulation nor does it depend on learning and conditioning. However, pairing of weak tones and aversive startle stimuli during PPI testing may induce associative learning. Thus, in the present study (n=60) we tested whether prepulses may be subject to aversive conditioning. Eyeblink EMG and electrodermal responses to intense (100 dB) acoustic stimuli, presented either alone or preceded by weak tones (prepulses, 50 ms, 70 dB, SOA=120 ms), were measured. We found that after strong contingent pairing of weak tones with startle stimuli (PPI paradigm) intense versions of these tones induced significantly larger eyeblink and skin conductance responses than did never paired control tones. We conclude that during PPI testing, prepulses may be subject to aversive conditioning.</AbstractText>
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Aversive associative conditioning of prepulses in a startle inhibition paradigm.

Aversive associative conditioning of prepulses in a startle inhibition paradigm.

Source :

English descriptors

Abstract

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki