How the Brain Works Overview Ways of Studying the Brain How is the Brain Organized?

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Presentation transcript:

How the Brain Works

Overview Ways of Studying the Brain How is the Brain Organized?

Studying the Brain Autopsy EEG and evoked potentials Brain Imaging – fMRI – PET

Hindbrain Pons: connects spinal cord and brain Medulla: controls vital functions Cerebellum: plans and monitors movement

The Cerebrum Four lobes Limbic system Cortex is outer surface

Thalamus: organizes sensory information Hypothalamus: regulates body states Hippocampus: forms memories Amygdala: controls emotions The Limbic System

The Four Lobes Occipital: vision Temporal: hearing, language Frontal: personality, thinking, motor control Parietal: touch, temperature, pain

Cerebral Cortex Highly organized motor cortex: strip of frontal lobes that generates commands for movement somatosensory cortex: strip of parietal lobes that processes touch information

The Two Hemispheres Similar, but not identical in structure or function Most nerve fibers cross to the other side of the brain Right hemisphere controls left side of body, and vice versa

Left Brain-Right Brain Left Hemisphere specialized for language, logic, math Right Hemisphere specialized for spatial ability, music, art True for almost all right-handers and many left-handers.

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