Stimulus-Preceding Negativity and heart rate changes in anticipation of affective pictures.

Full Abstract

The aim of the present study was to investigate the affective modulation of the Stimulus-Preceding Negativity (SPN) and heart rate changes in anticipation of visual stimuli differing in emotional content. A S1-S2 task was employed with a word (S1) indicating the content of a subsequent emotional picture (S2). Both valence and arousal dimensions were manipulated by presenting positive and negative pictures, high and low in arousal. Irrespective of valence, the amplitude of the SPN resulted to be significantly larger preceding high rather than low arousal pictures, indicating that the SPN does reflect the intensity of the motivational engagement ascribed to affective stimuli. Heart rate responses showed a deceleration preceding S2, which was larger preceding high arousal stimuli in comparison with neutral stimuli. Results suggest a coherent response pattern in both cortical and peripheral measures during affective anticipation.

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Author information

Author/s: Poli, Silvia (S); Sarlo, Michela (M); Bortoletto, Marta (M); Buodo, Giulia (G); Palomba, Daniela (D);

Affiliation: Department of General Psychology, University of Padova, Via Venezia 8, Padova, Italy. silvia.poli(-atsign-)unipd.it

Journal and publication information

Publication Type: Clinical Trial; Journal Article

Journal: International journal of psychophysiology : official journal of the International Organization of Psychophysiology (Int J Psychophysiol), published in Netherlands. (Language: eng)

Reference: 2007-Jul; vol 65 (issue 1) : pp 32-9

Dates: Created 2007/07/06; Completed 2007/08/28;

PMID: 17395326, status: MEDLINE (last retrieval date: 12/26/2008)

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Adult
Arousal - physiology
Electrocardiography
Electroencephalography
Emotions - physiology
Environmental Pollution
Erotica - psychology

Evoked Potentials - physiology
Female
Heart Rate - physiology
Humans
Male
Photic Stimulation
Wounds and Injuries - psychology

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