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Genetic and environmental influences on emotion-modulated startle reflex: a twin study.
Psychophysiology. 2007 Jan; 44(1):106-12.P

Abstract

Emotion-modulated startle reflex is an important indicator of traitlike differences in affective processing implicated in the biological basis of personality and psychopathology. This study examined heritability of startle modulation by affective pictures in 66 pairs of monozygotic and 57 pairs of dizygotic female twins. Consistent with previous studies, startle magnitude was significantly influenced by emotional valence of the picture (positive < neutral < negative). Absolute response magnitude showed high heritability in all three valence conditions (59-61%); however, there were no significant genetic influences on the amount of startle modulation. Thus, our data do not support the hypothesis that emotion-modulated startle can serve as an indicator of genetically transmitted individual differences in affective processing.

Authors+Show Affiliations

Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri 63108, USA. andrey@matlock.wustl.eduNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, N.I.H., Extramural
Twin Study

Language

eng

PubMed ID

17241146

Citation

Anokhin, Andrey P., et al. "Genetic and Environmental Influences On Emotion-modulated Startle Reflex: a Twin Study." Psychophysiology, vol. 44, no. 1, 2007, pp. 106-12.
Anokhin AP, Golosheykin S, Heath AC. Genetic and environmental influences on emotion-modulated startle reflex: a twin study. Psychophysiology. 2007;44(1):106-12.
Anokhin, A. P., Golosheykin, S., & Heath, A. C. (2007). Genetic and environmental influences on emotion-modulated startle reflex: a twin study. Psychophysiology, 44(1), 106-12.
Anokhin AP, Golosheykin S, Heath AC. Genetic and Environmental Influences On Emotion-modulated Startle Reflex: a Twin Study. Psychophysiology. 2007;44(1):106-12. PubMed PMID: 17241146.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Genetic and environmental influences on emotion-modulated startle reflex: a twin study. AU - Anokhin,Andrey P, AU - Golosheykin,Simon, AU - Heath,Andrew C, PY - 2007/1/24/pubmed PY - 2007/4/3/medline PY - 2007/1/24/entrez SP - 106 EP - 12 JF - Psychophysiology JO - Psychophysiology VL - 44 IS - 1 N2 - Emotion-modulated startle reflex is an important indicator of traitlike differences in affective processing implicated in the biological basis of personality and psychopathology. This study examined heritability of startle modulation by affective pictures in 66 pairs of monozygotic and 57 pairs of dizygotic female twins. Consistent with previous studies, startle magnitude was significantly influenced by emotional valence of the picture (positive < neutral < negative). Absolute response magnitude showed high heritability in all three valence conditions (59-61%); however, there were no significant genetic influences on the amount of startle modulation. Thus, our data do not support the hypothesis that emotion-modulated startle can serve as an indicator of genetically transmitted individual differences in affective processing. SN - 0048-5772 UR - https://www.unboundmedicine.com/medline/citation/17241146/Genetic_and_environmental_influences_on_emotion_modulated_startle_reflex:_a_twin_study_ L2 - https://doi.org/10.1111/j.1469-8986.2006.00486.x DB - PRIME DP - Unbound Medicine ER -