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Lack of startle blink potentiation to mutilation pictures irrespective of fearfulness.
Biol Psychol. 2010 Oct; 85(2):338-43.BP

Abstract

Previous research has shown that in healthy individuals blood-related stimuli elicit a distinctive autonomic response pattern and heightened processing as compared with other unpleasant and arousing visual stimuli. In addition, growing evidence suggests that information processing of disorder-related stimuli is also different in blood phobia as compared with other specific phobias. In the present study, the magnitude of the startle eyeblink reflex elicited during the viewing of mutilation, human attack, erotica and neutral pictures was recorded in 22 blood phobics and 25 healthy controls. Startle eyeblink responses were measured at 300, 1500, 3500 and 4500-ms time intervals after picture onset in order to assess the attentional/affective modulation and its temporal course. Reliable startle inhibition to erotic pictures and startle potentiation to human attack scenes were found relative to neutral pictures. However, while both groups rated mutilations as the most unpleasant and arousing content, no blink facilitation relative to neutral contents was found at either early or late probe times. Crucially, such effect occurred independently of fear levels, as no difference between phobics and controls was found in the size of the startle blinks elicited throughout the viewing of blood pictures.

Authors+Show Affiliations

Department of General Psychology, University of Padova, Via Venezia 8-35131 Padova, Italy. michela.sarlo@unipd.itNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

20727936

Citation

Sarlo, Michela, et al. "Lack of Startle Blink Potentiation to Mutilation Pictures Irrespective of Fearfulness." Biological Psychology, vol. 85, no. 2, 2010, pp. 338-43.
Sarlo M, Buodo G, Palomba D. Lack of startle blink potentiation to mutilation pictures irrespective of fearfulness. Biol Psychol. 2010;85(2):338-43.
Sarlo, M., Buodo, G., & Palomba, D. (2010). Lack of startle blink potentiation to mutilation pictures irrespective of fearfulness. Biological Psychology, 85(2), 338-43. https://doi.org/10.1016/j.biopsycho.2010.08.004
Sarlo M, Buodo G, Palomba D. Lack of Startle Blink Potentiation to Mutilation Pictures Irrespective of Fearfulness. Biol Psychol. 2010;85(2):338-43. PubMed PMID: 20727936.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Lack of startle blink potentiation to mutilation pictures irrespective of fearfulness. AU - Sarlo,Michela, AU - Buodo,Giulia, AU - Palomba,Daniela, Y1 - 2010/08/19/ PY - 2010/01/17/received PY - 2010/08/11/revised PY - 2010/08/12/accepted PY - 2010/8/24/entrez PY - 2010/8/24/pubmed PY - 2011/1/12/medline SP - 338 EP - 43 JF - Biological psychology JO - Biol Psychol VL - 85 IS - 2 N2 - Previous research has shown that in healthy individuals blood-related stimuli elicit a distinctive autonomic response pattern and heightened processing as compared with other unpleasant and arousing visual stimuli. In addition, growing evidence suggests that information processing of disorder-related stimuli is also different in blood phobia as compared with other specific phobias. In the present study, the magnitude of the startle eyeblink reflex elicited during the viewing of mutilation, human attack, erotica and neutral pictures was recorded in 22 blood phobics and 25 healthy controls. Startle eyeblink responses were measured at 300, 1500, 3500 and 4500-ms time intervals after picture onset in order to assess the attentional/affective modulation and its temporal course. Reliable startle inhibition to erotic pictures and startle potentiation to human attack scenes were found relative to neutral pictures. However, while both groups rated mutilations as the most unpleasant and arousing content, no blink facilitation relative to neutral contents was found at either early or late probe times. Crucially, such effect occurred independently of fear levels, as no difference between phobics and controls was found in the size of the startle blinks elicited throughout the viewing of blood pictures. SN - 1873-6246 UR - https://www.unboundmedicine.com/medline/citation/20727936/Lack_of_startle_blink_potentiation_to_mutilation_pictures_irrespective_of_fearfulness_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0301-0511(10)00221-8 DB - PRIME DP - Unbound Medicine ER -