There are numerous publications on methods and applications for awake functional MRI
across different species, eg, voles, rabbits, cats, dogs, and rhesus macaques. Each of these …

This paper is the thirty-sixth consecutive installment of the annual review of research
concerning the endogenous opioid system. It summarizes papers published during 2013 …

Functional magnetic resonance imaging (fMRI) has been used to study the influence of
opioids on neural circuitry implicated in opioid use disorder, such as the cortico-striatal …

Opioid use results in thousands of overdose deaths each year. To address this crisis, we
need a better understanding of the neurobiological mechanisms that drive opioid abuse …

The mu opioid receptor is involved in many natural processes including stress response,
pleasure, and pain. Mutations in the gene also have been associated with opiate and …

Whether the opioid system plays a role in the ability to flexibly adapt behavior is still unclear.
We used fMRI to investigate the effect of a nucleotide tandem repeat (68-bp VNTR) …

Kappa opioid receptor (KOR) neuroimaging using positron emission tomography (PET) has
been immensely successful in all phases of discovery and validation in relation to …