PSYCH 1100H Lecture Notes - Lecture 1: Postcentral Gyrus, Occipital Lobe, Cerebellum
5 Oct 2018
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Document Summary
Major types of neurons: sensory neurons: carry information from the external environment (body) back to the. Cns: motor neurons: carry signals from the spinal cord to the muscles and glands, interneurons: connect sensory neurons, motor neurons, or other interneurons. Spinal reflexes: spinal reflexes: simple pathways in the nervous system that rapidly generate muscle contractions, brainstem: contains midbrain, pons, recticular formation, and medulla. Brainstem: medulla: essential functions, such as heart rate and blood pressure. Brainstem structures: pons: sleep, arousal, and facial expressions, midbrain: sensory reflexes, movement, and pain, recticular formation: controls mood, arousal, and sleep. Cerebellum: cerebellum: balance and motor coordination, contains more nerves than the rest of the brain, thalamus: processes sensory information, states of arousal, and learning and memory. Four lobes of the cortex: frontal lobe: primary motor cortex and areas responsible for complex cognitive processes. Frontal lobe: prefrontal cortex: planning of behavior, attention, judgment.
