Author(s): Kaboodvand N; Shabanpour M; Guterstam J;

Impulsivity is a trait associated with several psychiatric conditions, not least addictive disorders. While the neural mechanisms behind certain aspects of impulsivity have been studied extensively, there are few imaging studies examining this neurocircuitry in populations with substance use disorders. Therefore, we aimed to examine the functional connect ...

Article GUID: 38991286

Author(s): Pallikaras V; Mac Cionnaith CE; Rosales VCF; Arvanitogiannis A; Pfaus JG;

Rationale: Exposure to rewards can alter behavioral reactivity to them. For example, stimulants sensitize locomotor activation, whereas sexual experience sensitizes copulatory behaviors. Moreover, rewards can cross-sensitize one another. Although stimulants are known to cross-sensitize locomotor effects, the evidence for cross-sensitization between stimul ...

Article GUID: 36544054

Author(s): Pallikaras V; Shizgal P;

Deep-brain stimulation of the medial forebrain bundle (MFB) can provide effective, enduring relief of treatment-resistant depression. Panksepp provided an explanatory framework: the MFB constitutes the core of the neural circuitry subserving the anticipation and pursuit of rewards: the "SEEKING" system. On that view, the SEEKING system is hypoactive in de ...

Article GUID: 35431828