One fundamental question concerning brain reward mechanisms is to determine how
reward-related activity is influenced by the nature of rewards. Here, we review the …

As humans, we perceive feelings from our bodies that relate our state of well-being, our
energy and stress levels, our mood and disposition. How do we have these feelings? What …

Although compulsive sexual behaviour (CSB) has been conceptualized as a “behavioural”
addiction and common or overlapping neural circuits may govern the processing of natural …

The hypothalamic neuropeptide oxytocin has drawn the attention of scientists for more than
a century. The understanding of the function of oxytocin has expanded dramatically over the …

Romantic and maternal love are highly rewarding experiences. Both are linked to the
perpetuation of the species and therefore have a closely linked biological function of crucial …

Research on testosterone-behavior relationships in humans is assessed in relation to a
version of the challenge hypothesis, originally proposed to account for testosterone …

There is dual tactile innervation of the human hairy skin: in addition to fast-conducting
myelinated afferent fibers, there is a system of slow-conducting unmyelinated (C) afferents …

The assessment of sexual arousal in men and women informs theoretical studies of human
sexuality and provides a method to assess and evaluate the treatment of sexual …

The neural correlates of many emotional states have been studied, most recently through
the technique of fMRI. However, nothing is known about the neural substrates involved in …

We have recently shown that damage to the insula leads to a profound disruption of
addiction to cigarette smoking (Naqvi et al., Science 315: 531–534, 2007). Yet, there is little …