Spike Activity in the Cerebral Cortex
نویسندگان
چکیده
منابع مشابه
Slow and spike components of the direct cortical response in the cerebral cortex.
The cortical response to local electrical stimulation of an adjacent point1) is known to be characterized by a surface negative-positive potential followed by a prolonged negative potential. CHANG2) considered the superficial dendrite as having property of slowly conducting fibers that were directly excited by the stimulation and named it the dendritic potential. PURPURA and GRUNDFEST3) explain...
متن کاملSingle-neuron activity and tissue oxygenation in the cerebral cortex.
Blood oxygen level-dependent functional magnetic resonance imaging uses alterations in brain hemodynamics to infer changes in neural activity. Are these hemodynamic changes regulated at a spatial scale capable of resolving functional columns within the cerebral cortex? To address this question, we made simultaneous measurements of tissue oxygenation and single-cell neural activity within the vi...
متن کاملAccurate spike synchronization in cortex.
In view of the enormous capacity and complexity of mammalian brains it is evident that a detailed account of their anatomy and physiology alone cannot lead to a complete understanding of their function. Computer simulation and mathematical analysis of abstract, yet biologically realistic models for neurons and networks yield additional and useful information about the interplay of the underlyin...
متن کاملStereological study of the cerebral and cerebellar cortex following short time exposure to morphine in rats
Drug abuse has been claimed to cause the loss of neurons and reduction of volume in both the adult and developing brain. This study examined cortex volumes in cerebrum and cerebellum of male rats that were dependent on morphine using unbiased stereological counting methods and systematic random sampling technique. Our goal was to test whether short time exposure to morphine can affect the corte...
متن کاملEffect of paraoxon on the synaptosomal GABA uptake in rat hippocampus and cerebral cortex
Introduction: Paraoxon (the neurotoxic metabolite of organophosphorus (OP) insecticide, parathion) exerts acute toxicity by inhibition of acetylcholinesterase (AChE), leading to the accumulation of acetylcholine in cholinergic synapses and hence overstimulation of the cholinergic system. Since, reports on changes in the level of γ- amino butyric acid (GABA) during OP-induced convulsion have bee...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 1964
ISSN: 0028-0836,1476-4687
DOI: 10.1038/202253a0