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Research article summary:
Anticipation of a non-aversive reaction time task facilitates the blink startle reflex.
Abstract Extract:
The conditions under which blink startle facilitation can be found in anticipation of a reaction time task were investigated to resolve inconsistent findings across previous studies. Four groups of participants (n=64) were presented with two visual ... (Full abstract text below) Published 2002Mar
in Journal: Biol Psychol
(Language : eng)
Full Pubmed Extract
This information was retrieved, real-time, on your behalf from the public area of the Pubmed website:
1. Biol Psychol.
2002 Mar;59(2):147-62
Anticipation of a non-aversive reaction time task facilitates the blink startle reflex.
Lipp OV
Department of Psychology, School of Psychology, University of Queensland, Brisbane, Qld, 4072, Australia. o.lipp@psy.uq.edu.au
The conditions under which blink startle facilitation can be found in anticipation of a reaction time task were investigated to resolve inconsistent findings across previous studies. Four groups of participants (n=64) were presented with two visual stimuli, one predicting a reaction time task (S+) and the second presented alone (S-). Participants were asked to make a speeded response to the offset of the S+ (S1 paradigm) or were asked to respond to a tactile stimulus presented at the offset of the S+ (S1-S2 paradigm). Half of the participants in each paradigm condition received performance feedback. Overall, blink latency shortening and magnitude facilitation were larger during S+ than during S-. More detailed analyses, however, found these differences to be reliable only in the Feedback conditions. Ratings of S+ pleasantness did not change across the experiment. Electrodermal responses to S+ were larger than to S- in all groups with differential electrodermal responding emerging earlier in the S1 paradigm. Taken together, the data support the notion that startle facilitation can occur during non-aversive Pavlovian conditioning.
PMID : 11911937 [PubMed - Indexed for MEDLINE]
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Full Author Information
| First Name | LastName | Initials |
| Ottmar V | Lipp | OV |
Affiliation: Department of Psychology, School of Psychology, University of Queensland, Brisbane, Qld, 4072, Australia. o.lipp@psy.uq.edu.au
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