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The Brain. Early Studies. Dualism The mind survives the death of the body? Phrenology The bumps in your head Personalized Phrenology Map your head according to your interests. Studying the Brain. Accidents Phineas Gage . Studying the Brain. Electric Stimulation of specific areas EEG
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Early Studies • Dualism • The mind survives the death of the body? • Phrenology • The bumps in your head • Personalized Phrenology • Map your head according to your interests
Studying the Brain • Accidents • Phineas Gage
Studying the Brain • Electric Stimulation of specific areas • EEG • Records the electrical activity of the brain
Studying the Brain • Scanning CAT fMRI MRI PET
PET PET- blue dye for function activity images
MRI • MRI- uses radio waves to create detailed 3-D model • Picks up abnormalities
fMRI fMRI- 3-D model of stimulus-specific response function
CAT CAT- use radiation to create a 3-D model
Parts of the Brain • Hindbrain • Life Center • Medulla- heart rate, blood pressure, breathing • Pons- regulating body movement, sleep • Cerebellum- balance and coordination • Midbrain • Awareness • Reticular Activating System- attention, sleep and arousal
RAS Pons Cerebellum Medulla
Parts of the Brain • Forebrain • Personality • Thalamus- Relay station for sensory stimulation • Limbic System- Emotion • Hypothalamus- Hunger, Thirst Motivation • Amygdala-Aggression, Rage, Passion • Hippocampus- Memory Formation • Cerebrum- Grey Matter…Full of Storage and interbrain connections, Unique • Cerebral Cortex- Crust of the Cerebrum…the wrinkles
Cerebral Cortex Cerebrum Thalamus Hypothalamus Hippocampus Amygdala
Cerebral Cortex • Divided into Halves, Lobes and Association Areas • Important to remember that there are “locations” of functions, but all are interrelated.
Cerebral Cortex • Lobes • Frontal • Organization, problem solving, motor cortex, personality • Broca’s Area- Speech • Parietal • Sensory perception, sensory cortex • Temporal • Auditory understanding, balance • Wernicke’s Area- Language Comprehension • Occipital • Visual processing • Association Areas • Work to shape information to make it meaningful • Major force behind memory
Cerebral Cortex • Halves • Corpus Callosum- band of fibers that connects the right and left side of the brains • Left Hemisphere • Language and logic • Controls right side of the body • Right Hemisphere • Artistic abilities, spatial intelligence • Controls left side of the body
Cerebral Cortex • Halves • Right Hemisphere • Artistic abilities, spatial intelligence • Controls left side of the body
Cerebral Cortex • Split Brain-No communication thru the corpus callosum