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Journées Inaugurales du Centre de Recherche en Neurosciences de Lyon (CRNL)
c6-Homeostatic regulation of neural activity across the sleep- wake cycle (3906) - Mardi 25 septembre 2012 16:30 - 17:00

c6-Homeostatic regulation of neural activity across the sleep- wake cycle

Neural activity in the brain is altered across the sleep-wake cycle, allowing periods of rest alternating with activity. Yet, some neurons decrease their discharge during sleep, whereas others increase their discharge during sleep, relative to waking. Such different cell populations within the brainstem, hypothalamus and basal forebrain generate the different states of wakefulness, slow wave sleep (SWS) and paradoxical sleep (PS, or rapid eye movement sleep, REMS). As revealed by juxtacellular recording and labeling of neurons in the basal forebrain (BF), sets or pairs of excitatory (glutamatergic or cholinergic) and inhibitory (GABAergic) cells function either in parallel, to promote by their discharge cortical activation or behavioral arousal (together with postural muscle tonus), or in opposition, to effect cortical de-activation or behavioral quiescence (together with postural muscle atonia). The activity of each neuron is likely regulated in a homeostatic manner, such that prolonged activity results in changes in its receptors

Barbara JONES, Dpt of Neurology and Neurosurgery, McGill University, Montreal Neurological Institute, Montreal, Quebec, Canada

Sciences du Vivant Communication

Toutes les vidéos de l'évenement Journées Inaugurales du Centre de Recherche en Neurosciences de Lyon (CRNL) (20 videos)

00:28:00.03

2012-09-25

10:45 - 11:45 : Ouverture du colloque

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2012-09-25

11:45 - 12:15 : Brain against brain: presentation of a new brain computer interfa...

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2012-09-25

14:30 - 15:00 : C2-Multiple level interactions between neurodegeneration and neur...

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15:00 - 15:20 : C3-Serotonin receptors and neurodegenerative processes. A Focus o...

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15:20 - 15:40 : c4-VEGF in neuronal development and synaptic plasticity

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15:40 - 16:00 : C5-Mutations in U4atac small nuclear RNA: from splicing to brain ...

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2012-09-25

16:30 - 17:00 : c6-Homeostatic regulation of neural activity across the sleep- wa...

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2012-09-25

17:00 - 17:30 : c7-The neural correlates of conscious awareness revealed by the s...

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17:30 - 17:50 : c8-Cognition markers in altered states of consciousness

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17:50 - 18:10 : C9-The multiple faces of wakefulness, histaminergic and orexinerg...

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18:10 - 18:30 : c10-Mechanisms responsible for Paradoxical (REM) sleep genesis: w...

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2012-09-26

09:30 - 10:00 : c12-How temporal expectations change perception

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2012-09-26

10:20 - 10:40 : c14-High-frequency neural activity and human cognition: insights ...

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10:40 - 11:00 : c15-Neuroimagery of olfactory perception and memory in humans

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11:00 - 11:20 : c16-Language, music, complex sounds: What to expect?-And when

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2012-09-26

13:30 - 14:00 : c17-How to induce neuroplastic alterations non-invasively

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14:00 - 14:30 : c18-Brain Computer Interfaces (BCI) in paralysis and psychologica...

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14:50 - 15:10 : c20-Pain relief with transcranial magnetic stimulation: what are ...

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15:10 - 15:25 : c21-Brain plasticity sustained by environmental enrichment: hopes...

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2012-09-26

15:25 - 15:30 : Clôture

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