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Neuronal Processing. Faisal I. Mohammed, MD, PhD. Relaying Signals through Neuronal Pools. Neuronal Pools. groups of neurons with special characteristics of organization comprise many different types of neuronal circuits converging diverging reverberating.
Sinapsis Neuronal. Colegio Hispano Americano Depto. De Ciencias – Biología Nivel: 3º medio. Sinapsis: articulación interneuronal . Superficie presináptica Espacio sináptico Superficie Postsináptica. Las Sinapsis pueden ocurrir entre:. Neuronas Una neurona y una célula receptora
Neuronal Pools. CNS composed of millions of neuronal pools number of neurons in these pools vary from a few to a vast number each pool has its own special characteristics of organization which affects the way it processes signals
Neuronal Pathways. Reflexes are rapid, predictable, and involuntary responses to stimuli Involve both CNS and PNS structures Types: Autonomic Reflexes Controls activation of smooth muscles Example: salivation and pupil reflex Somatic Reflexes Controls skeletal muscles
Neuronal Transmission. BN Fall 2011 Julia Sobesky. Types of synapses Electrical Chemical Neurotransmitters Criteria Types Release Inactivation Receptor types Ionotropic Metabotropic Ligand binding Plasticity. Outline. Electrical synapse: gap junctions. ~3nm apart
N. “Neuronal Apocalypse”. “The brain of man being torn apart by the environment it has created” Drawing by: S. Carcassonne (Copied without permission) From: Neuronal Man by: Jean-Pierre Changeux. Welcome. The center of excellence for motor research
Measured Signal. Neuronal Activation. ?. ?. ?. ?. Hemodynamics. Noise. Dynamics Fluctuations Pattern Information Neuronal Current MRI. The BOLD Signal. B lood O xygenation L evel D ependent (BOLD) signal changes. task. task.
n-dimensional vectors. m-dimensional vectors m < n. Neuronal Goal. We look for axes which minimise projection errors and maximise the variance after projection. Ex:. transform from 2 to 1 dimension. more information (variance). rotate. less information. project. Algorithm (cont’d).
Neuronal Function. Goal: electrochemical communication Requirement: Electrochemical signal generation Electrochemical signal propagation Electrochemical signal transmission. Neuronal Function. Neuronal Function. Electrochemical Signal generation. Establishing Membrane Potential ( V m ).
REGULATION OF HISTONE ACETYLATION IN THE HIPPOCAMPUS OF CHRONICALLY STRESSED RATS: A POTENTIAL ROLE OF SIRTUINS. In Hippocampus Chronic Variable Stress (CVS) Induces :. Suppression of Synaptic Plasticity (CA1). Decreased Neurogenesis (Dentate Gyrus). Atropy in Apical Dendrites (CA3).