PS260 Lecture Notes - Myelin, Aphasia, Occipital Lobe
Document Summary
Largest portion of the human brain is the cerebrum (i. e. , forebrain) Covering the cerebrum is a thin layer of tissue called the cerebral cortex, which plays a key role in attention, perception, awareness, thought, memory, language, and consciousness. Motor areas contain brain tissue crucial for organizing and controlling bodily movements. Sensory areas contain tissue essential for organizing and analyzing the information received from the senses. Association areas support many functions, including the essential (but not well- defined) human activity we call thinking. Motor and sensory cortex organized by body parts. Based on research from the 1930s, a primary motor strip and a somatosensory strip were found. Some areas such as the head and fingers are shown larger because motor and/or sensory information about them is processed by more cortex than others such as the elbow. Projection areas: certain regions of the cerebral cortex that serve as departure points or.
