Pedunculopontine Tegmental Nucleus - Physiology
Research News and Information

Sunday, November 22, 2009

A simple model of cortical dynamics explains variability and state dependence of sensory responses in urethane-anesthetized auditory cortex.

24 Aug 2009 The responses of neocortical cells to sensory stimuli are variable and state dependent. It has been hypothesized that intrinsic cortical dynamics play an important role in trial-to-trial variability; the precise nature of this dependence, however, ... Read more...

Effects of scopolamine on dopamine neurons in the substantia nigra: role of the pedunculopontine tegmental nucleus.

30 Jul 2009 Previous neurochemical and behavioral studies suggest that muscarinic receptor antagonism has an excitatory effect on the nigrostriatal dopamine (DA) system. Using in vivo extracellular single unit recording, this study examined whether blockade of ... Read more...

Bar pressing for food: differential consequences of lesions to the anterior versus posterior pedunculopontine.

13 Jul 2009 The pedunculopontine tegmental nucleus (PPTg) is in a key position to participate in operant reinforcement via its connections with the corticostriatal architecture and the medial reticular formation. Indeed, previous work has demonstrated that rats ... Read more...

Latest indexed articles for 'Pedunculopontine Tegmental Nucleus - Physiology'

These are the very latest articles for this heading:

• A simple model of cortical dynamics explains variability and state dependence of sensory responses in urethane-anesthetized auditory cortex. 24 Aug 2009
• Effects of scopolamine on dopamine neurons in the substantia nigra: role of the pedunculopontine tegmental nucleus. 30 Jul 2009
• Bar pressing for food: differential consequences of lesions to the anterior versus posterior pedunculopontine. 13 Jul 2009
• [Motor control by the basal ganglia] 30 May 2009
• Different neural systems mediate morphine reward and its spontaneous withdrawal aversion. 7 May 2009
• Different pedunculopontine tegmental neurons signal predicted and actual task rewards. 13 Apr 2009
• [Reward processing of the basal ganglia--reward function of pedunculopontine tegmental nucleus] 30 Mar 2009
• The rostromedial tegmental nucleus (RMTg), a GABAergic afferent to midbrain dopamine neurons, encodes aversive stimuli and inhibits motor responses. 10 Mar 2009
• GABA(A) receptors mediate the opposing roles of dopamine and the tegmental pedunculopontine nucleus in the motivational effects of ethanol. 27 Feb 2009
• Anatomy, physiology, and pathophysiology of the pedunculopontine nucleus. 13 Feb 2009
• Properties of distinct ventral tegmental area synapses activated via pedunculopontine or ventral tegmental area stimulation in vitro. 31 Jan 2009
• Pedunculopontine nucleus stimulation induces monocular oscillopsia. 30 Jan 2009
• Muscarinic and alpha(1)-adrenergic mechanisms contribute to the spinal mediation of stimulation-induced antinociception from the pedunculopontine tegmental nucleus in the rat. 29 Jan 2009
• Electrophysiological effects of ghrelin on pedunculopontine tegmental neurons in rats: An in vitro study. 9 Dec 2008
• Low frequency stimulation of the pedunculopontine nucleus modulates electrical activity of subthalamic neurons in the rat. 24 Nov 2008
• Pedunculopontine nucleus stimulation influences REM sleep in Parkinson's disease. 13 May 2008
• Pedunculopontine nucleus microelectrode recordings in movement disorder patients. 16 Mar 2008
• A functional dissociation of the anterior and posterior pedunculopontine tegmental nucleus: excitotoxic lesions have differential effects on locomotion and the response to nicotine. 10 Feb 2008
• The pedunculopontine tegmental nucleus and the nucleus basalis magnocellularis: do both have a role in sustained attention? 28 Jan 2008
• Pedunculopontine nucleus deep brain stimulation changes spinal cord excitability in Parkinson's disease patients. 13 Jan 2008

See a longer list of these articles.

Technical information about 'Pedunculopontine Tegmental Nucleus'

Definition: Dense collection of cells in the caudal pontomesencephalic tegmentum known to play a role in the functional organization of the BASAL GANGLIA and in the modulation of the thalamocortical neuronal system.

Descriptor UI: D045042

Alternative terms: Pedunculopontine Tegmental Nucleus; Nucleus, Pedunculopontine Tegmental; Tegmental Nucleus, Pedunculopontine; Nucleus tegmentalis pedunculopontinus;

Allowable Qualifiers: abnormalities; anatomy & histology; blood supply; cytology; drug effects; embryology; enzymology; growth & development; immunology; injuries; metabolism; microbiology; parasitology; pathology; physiology; physiopathology; radiation effects; radiography; radionuclide imaging; secretion; surgery; transplantation; ultrastructure; ultrasonography; chemistry; virology;

Tree Number: A08.186.211.132.659.822.575; A08.186.211.653.822.575;

History Note: 2004