Quick Search:

uzh logo
Browse by:


Zurich Open Repository and Archive

Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-5777

Csomor, P A; Yee, B K; Vollenweider, F X; Feldon, J; Nicolet, T; Quednow, B B (2008). On the influence of baseline startle reactivity on the indexation of prepulse inhibition. Behavioral Neuroscience, 122(4):885-900.

Accepted Version
View at publisher


Prepulse inhibition (PPI) of the startle reflex refers to the reduction of the reflexive startle response to an intense pulse stimulus when its presentation is shortly preceded by a weak prepulse stimulus. PPI is considered as a cross-species translational model of sensorimotor gating, and deficient PPI has been reported in a number of neuropsychiatric disorders. Although a part of the literature is based on the assumption that PPI is independent of the baseline startle reaction, there is accumulating evidence (Csomor et al., 2006; Sandner & Canal, 2007; Yee, Chang, Pietropaolo, & Feldon, 2005) that argues against such an independency. The authors systematically investigated whether PPI indexed as percentage or difference score is dependent on the magnitude of baseline startle reactivity in healthy human volunteers and in C57BL/6 mice. The results revealed that both indexations of PPI were affected by the magnitude of the baseline startle. The authors highlight the pitfalls of different methods to index PPI, especially when startle reactivity differs considerably between groups under comparison, and offer practical recommendations to satisfactorily deal with such baseline differences.


47 citations in Web of Science®
50 citations in Scopus®
Google Scholar™



63 downloads since deposited on 18 Nov 2008
13 downloads since 12 months

Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Psychiatric University Hospital Zurich > Clinic for Psychiatry, Psychotherapy, and Psychosomatics
Dewey Decimal Classification:610 Medicine & health
Date:August 2008
Deposited On:18 Nov 2008 13:24
Last Modified:28 Nov 2013 01:00
Publisher:American Psychological Association
Publisher DOI:10.1037/0735-7044.122.4.885
PubMed ID:18729642

Users (please log in): suggest update or correction for this item

Repository Staff Only: item control page