The main focus of the self-stimulation phenomenon, as indicated by maximum rates for minimum stimulus levels and by lesion studies, iies in an olfactory midbrain pathway through septal area, lateral hypothalamus and ventrolateral tegmemum; over most of its course this pathway is called the medial forebrair bundle. The studies which indicated this "focus" also showed a gradient of self-stimulati...

Acquired neuromyotonia encompasses a group of inflammatory disorders characterized by symptoms reflecting peripheral nerve hyperexcitability, which may be clinically confused in the early stages with amyotrophic lateral sclerosis. Despite a clear peripheral nerve focus, it remains unclear whether the ectopic activity in acquired neuromyotonia receives a central contribution. To clarify whether ...

Recently, a number of studies have demonstrated the utility of transcranial current stimulation as a tool to facilitate a variety of cognitive and perceptual abilities. Few studies, though, have examined the utility of this approach for the processing of social information. Here, we conducted 2 experiments to explore whether a single session of high-frequency transcranial random noise stimulati...

Total brain acetylcholine (ACh) was assayed in groups of animals after various periods of operant responding maintained by electrical stimulation of the lateral posterior hypothalamus or of escape behavior induced by electrical stimulation of the midbrain tegmentum. Different groups of trained rats were placed in identical Skinner boxes for periods of 1 to 24 hr. The following groups were studi...

CALARESU, FRANCO R., AND GORDON J. MOGENSON. Cardiovascular responses to electrical stimulation of the septum in the rat. Am. J. Physiol. 223(4): 777-782. 197 2 .-Cardiovascular responses to electrical stimulation of histologically verified sites in the septum were studied in 60 rats. In animals under a-chloralose anesthesia stimulation of the lateral septum (24 sites) elicited arterial hypoten...

Reticular facilitation of evoked responses in the lateral geniculate nucleus and visual cortex elicited by ipsilateral optic tract stimulation was studied in cats prepared under &ethyl ether-oxygen anesthesia, subsequently locally anesthetized, paralyzed with decamethonium, and placed on artificial respiration. In animals with an intact visual system, single electrical shocks to the reticular f...

There has been little electrophysiological examination of the afferent projection from lateral entorhinal cortex to dorsal subiculum. Here we provide evidence that synaptic inputs from lateral entorhinal cortex and CA1 converge onto single dorsal subicular neurons in vivo. Subicular responses to CA1 stimulation consisted of excitation and/or long-duration inhibition. Neurons excited by CA1 acti...

Lateral movement of indoleacetic acid-1-(14)C in corn coleoptiles was measured as radioactivity moving laterally following unilateral application of the auxin. The data suggest that there is an endogenous lateral movement of auxin, and that phototropic stimulation of the coleoptile depresses lateral movement towards the light and enhances lateral movement away from the light. The lateral moveme...

The objective of this study was to compare the functional connectivity of the lateral and medial thalamocortical pain pathways by investigating the blood oxygen level-dependent (BOLD) activation patterns in the forebrain elicited by direct electrical stimulation of the ventroposterior (VP) and medial (MT) thalamus. An MRI-compatible stimulation electrode was implanted in the VP or MT of α-chlor...