PSY270H1 Lecture Notes - Sensory Neuroscience, Sensory Neuron, Microelectrode
9
PSY270H1 Full Course Notes
Verified Note
9 documents
Document Summary
Cognition and the brain: basic principles10/8/2012 11:20:00 am. Camillo golgi developed a chemical technique that stained some neurons but left most unstained, which revealed the structure of single neurons in pictures. Neurons: cells that are specialized to receive and transmit information in the nervous system: different neurons specialized for difference functions. Dendrites (branch out from cell body, receive info from other neurons) Axon/nerve fibre (transmitting structure of the neuron, tube filled with fluid to conduct electrical signals) Sensory receptors (sometimes replace cell body + dendrites at receiving end. Receptors are specialized structures which respond to sensory info/changes in the environment: stimulus from environment sensory receptors electrical signal along nerve fiber synapse dendrites cell body. Axon: transduction: the transformation of one form of energy into another form of energy (e. g. energy from environment into electrical energy) Signals can travel long distances as individual neurons are linked together: how neurons communicate.
