Does hypnotic susceptibility influence information processing speed and motor cortical preparatory activity?

Responsiveness to suggestions while hypnotized is termed hypnotic susceptibility. An association between reaction time and hypnotic susceptibility has been demonstrated, but whether distinct changes in brain activity accompany this relationship remains unclear. We investigated the effect of hypnotic susceptibility on the speed of information processing and motor cortical preparatory activity.

Effects of Dopamine and Norepinephrine on Exercise-induced Oculomotor Fatigue.

Introduction: Fatigue-induced impairments in the control of eye movements are detectable via reduced eye movement velocity after a bout of prolonged, strenuous exercise. Slower eye movements caused by neural fatigue within the oculomotor system can be prevented by caffeine, and the upregulation of central catecholamines may be responsible for this effect. This study explored the individual contribution of dopamine and norepinephrine to fatigue-related impairments in oculomotor control.

Fatigue-related impairments in oculomotor control are prevented by norepinephrine-dopamine reuptake inhibition.

Fatigue-induced reductions in saccade velocity have been reported following acute, prolonged exercise. Interestingly, the detrimental impact of fatigue on oculomotor control can be prevented by a moderate dose of caffeine. This effect may be related to central catecholamine upregulation via caffeine's action as an adenosine antagonist.

Can motor imagery and hypnotic susceptibility explain Conversion Disorder with motor symptoms?

Marked distortions in sense of agency can be induced by hypnosis in susceptible individuals, including alterations in subjective awareness of movement initiation and control. These distortions, with associated disability, are similar to those experienced with Conversion Disorder (CD), an observation that has led to the hypothesis that hypnosis and CD share causal mechanisms. The purpose of this review is to explore the relationships among motor imagery (MI), hypnotic susceptibility, and CD, then to propose how MI ability may contribute to hypnotic responding and CD.

Nonconvulsive generalised status epilepticus following electroconvulsive therapy.

Objective: To describe a case of nonconvulsive generalised status epilepticus (NGS) following electroconvulsive therapy (ECT).

Clinical Picture: A 40-year-old woman suffering from a major depressive episode was treated with ECT following treatment with clonazepam, haloperidol and paroxetine. After her fifth treatment she became acutely confused.