PSYC 1101 Lecture Notes - Lecture 6: Electroencephalography, Midbrain Tectum, Sensory Cortex
15 Sep 2016
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Document Summary
Neuron: a single cell of the nervous system. Nerve: a bundle consisting of the axons of many neurons. Nervous system: network of neurons that conveys electrochemical information throughout the body. Autonomic (controls self-regulated action of internal organs and glands) Somatic (controls voluntary movements of skeletal muscles: central (brain and spinal cord) Simple pathways in the nervous system that rapidly generate muscle contractions. Painful sensations travel directly to the spinal cord via sensory neurons, which issue an immediate command to the motor neurons to retract the hand. Coordinates information coming into and out of the spinal cord: the hindbrain contains: Pons: dense bundles of axons that mediate communication between the midbrain and the hindbrain, bridge between the hindbrain and midbrain. Referred to as the reptilian brain as it is the oldest part of the brain, evolutionarily. Responsible for performing very basic functions such as autonomic actions. Vta: critical to experience in reward and pleasure.
