Abstract
In terms of reproductive success the quality and duration of maternal care exhibited by any particular species is of paramount importance, and yet compared with the amount of research studying the control of reproductive cycles, sexual behaviour, and fertility, it has historically received considerably less attention. However, we are now beginning to understand how the brain is organised to mediate this complex behaviour and how its expression is orchestrated by different hormonal and neurochemical factors. This review summarises a series of neuroanatomical, electrophysiological, in vivo sampling and behavioural neuropharmacological experiments carried out in sheep. These have attempted to define the neural circuitry and hormonal neurotransmitter systems involved both in the control of maternal behavoiur per se and in the selective olfactory recognition of lambs, which is the basis of an exclusive emotional bond between mother and offspring.
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