Document Type

Article

Publication Date

1-1-2005

Publication Title

Journal of Neuroscience

Abstract

Nursing has reciprocal benefits for both mother and infant, helping to promote maternal behavior and bonding. To test the "rewarding" nature of nursing, functional magnetic resonance imaging was used to map brain activity in lactating dams exposed to their suckling pups versus cocaine. Suckling stimulation in lactating dams and cocaine exposure in virgin females activated the dopamine reward system. In contrast, lactating dams exposed to cocaine instead of pups showed a suppression of brain activity in the reward system. These data support the notion that pup stimulation is more reinforcing than cocaine, underscoring the importance of pup seeking over other rewarding stimuli during lactation.

Volume

25

Issue

1

First Page Number

149

Last Page Number

156

DOI

10.1523/JNEUROSCI.3156-04.2005

Publisher Statement

© 2005 Society for Neurscience. Available on publisher's site at http://www.jneurosci.org/content/25/1/149.short.

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