PSYCH 101 Lecture Notes - Lecture 13: Myelin, Central Nervous System, Cerebral Cortex

• School: UW
• Department: Psychology
• Course: PSYCH 101
• Professor: Ann Culligan

Document Summary

Topics: brain and behavior, sensation and perception. Autonomic (unaware: sympathetic (fight or flight, parasympathetic (rest and digest) Hindbrain survival: medulla coordinates circulation and breathing, reticular formation wakefulness, alertness, cerebellum movement. Midbrain orienting to pleasurable/threatening: tectum and tegmentum. Forebrain cerebral cortex and subcortical structures: subcortical. Frontal, temporal, occipital and parietal lobes: lateralization of cortical function. Detection and encoding of physical stimuli into neural signals: perception. Organizing, understanding and interpreting sensory information in order to render it cognitively meaningful: sensation. Begins with receptors and works up to integration. The (cid:271)rai(cid:374) will rapidly i(cid:374)terpret sti(cid:373)uli (cid:271)ased o(cid:374) (cid:862)(cid:373)ost likely(cid:863) explanation. Absolute threshold: minimum stimulation needed to detect a stimulus 50% of the time. Just noticeable difference: minimum difference between two stimuli that can be detected, we(cid:271)er"s law. Sensation adaptation: diminished sensitivity to a stimulus (like how are toes feel) Vision: right visual field goes to left hemisphere, left visual field goes to right hemisphere, amplitude, wavelength, eye.