Psychology 1000 Lecture Notes - Lecture 1: Sensory Cortex, Neural Coding, Acetylcholine

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Laura Reid

Document Summary

Shift in electrical charge travels along the neuron. Neurotransmitters chemical messengers that diffuse across synapses( ) and activate receptor( ) sites on adjacent( ) cells. Cause inflow of sodium or other (+ions) After an impulse passes any point on the axon, the membrane isn"t excitable( . Molecules travel across synapse to bind with receptor sites on dendrites of post synaptic neuron. Neurotransmitters: monoamines( ) share similar chemical building blocks. Important for regulating cognitive function, emotion, learning and movement: dopamine( ) prominently in. Frontal cortex( ), hypothalamus( ) and limbic system( ) (learning memory regulating emotion) Parkinson"s disease: norepinephrine( ) derived from epinephrine ( ) (adrenaline) *excitatory or inhibitory throughout brain and spinal cord. *depression: serotonin( ) * high in brain stem and thalamus( ) * depression: acetylcholine( ) * excitatory at brain and neuromuscular junctions involved in muscle movement learning and memory. * learning and memory: gaba ( )(gamma-aminobutyric acid) *inhibitory transmitter.