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Of genes, environment, and destiny

Published online by Cambridge University Press:  01 June 1999

Simona Cabib  and
Stefano Puglisi-Allegra
Simona Cabib
Affiliation:
Instituto di Psicobiologia e Psicofarmacologia (CNR) I-00137 Rome, [email protected]
Stefano Puglisi-Allegra
Affiliation:
Department of Psychology, University of Rome, “La Sapienza,” 00185 Rome, [email protected]
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Abstract

The target article approaches individual differences in terms of phenotypic differences developing through the interaction between a specific genetic make up and environmental variables. This interaction is proposed to be cooperative and oriented toward a progressive stabilisation of the trait. However, experimental data from animal studies indicate that environmental pressure promotes dramatic changes in phenotypic expression in mature organisms. Indeed, environmental constraint not only promotes the phenotypic expression of facilitated VTA-NAS DA transmission in genotype-resistant individuals; it also inhibits its expression in genetically prone individuals. This is in line with negative genotype-environment correlation revealed by behavior genetics.

Type
Open Peer Commentary
Information
Behavioral and Brain Sciences , Volume 22 , Issue 3 , June 1999 , pp. 519 - 520
Copyright
© 1999 Cambridge University Press

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