UNIT 2 BIOLOGICAL BASES OF BEHAVIOR - Weebly

[Pages:111]UNIT 2 BIOLOGICAL BASES OF

BEHAVIOR

An Early History of Biopsychology

Plato: the mind is located in the brain

Franz Gall and Phrenology

? Early 1800s ? Read bumps on skull

to understand traits

If I was to take your brain out of your body, place it into patient needing brain surgery, where would the new `self' call home? Are you simply the end product of a biological and chemical reaction?

Biopsychology Today

Everything we do is ultimately controlled by our body and brain

? Body/brain composed of cells ? Brain cells called neurons communicate electrically and

chemically ? Different parts of the brain have specific functions ? Our brains create meaningful experiences from

sensory information ? Brain structure and function is influenced by

experience

AGENDA

1) Quiz 2) Stroke of Insight - Discussion 3) Todays Theme: Hemisphere

Dominance 4) VIDEO: Split Brain Patients 5) Hand back & Discuss Test

The Cortex

Each hemisphere is divided into 4 lobes

Frontal lobe Temporal lobe Parietal lobe Occipital lobe

The lobes are separated by deep convolutions known as

fissures

Cortex Breakdown...

Occipital Lobes

? Visual cortex ? Damage?

Temporal Lobes

? Auditory cortex ? Auditory hallucinations?

Parietal Lobes

? Primary sensory or somatosensory cortex

? Allocation of space?

Frontal Lobes

? Most evolved ? Motor cortex, which allows

us to move ? Allocation of space?

Some Hemispheric Strengths

Left Hemisphere

Language Logic Right side of body

Right Hemisphere

Perception Sense of self Inferences Left side of body

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