Biology of Behavior

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Biology of Behavior

• The Brain and its Components
• Drugs and Behavior
• Study of the Brain
• Control of Behavior and the Bodys Physiological
  Functions

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The Brain and Its Components

• Structure of the Nervous System
• Cells of the Nervous System
• The Excitable Axon The Action Potential
• Synapses
• A Simple Neural Circuit

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Structure of the Nervous System

• Central Nervous System (brain and spinal cord)
• Peripheral Nervous System (cranial and spinal
  nerves)

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Structure of the Nervous System
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Structure of the Nervous System
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Organization of the Cerebral Cortex
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Cells of the Nervous System
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The Action Potential
Ion channels and ion transporters regulate the
number of ions inside and outside the axon
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The Action Potential
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Synapses
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Synapses
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A Simple Neural Circuit
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A Simple Neural Circuit
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Study of the Brain

• Experimental Ablation
• Visualizing the Structure of the Brain
• Measuring the Brains Activity
• Stimulating the Brains Activity
• Altering Genetics

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Experimental Ablation

• Brain lesions
• An injury to a particular part of the brain
• The effects of that lesion on an animals
  behaviors are studied
• Stereotaxic apparatus

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Visualizing the Structures of the Brain

• Human brain visualization methods
• CT scans (also called CAT scans)
• MRI scans

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Measuring the Brains Activity

• EEG (Electroencephalogram)
• Measures brain waves through microelectrodes
• MEG (Magnetoencephalography)
• PET scans
• fMRI scans

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Stimulating the Brains Activity
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Stimulating the Brains Activity

• Transcranial Magnetic Stimulation (TMS)
• Magnetic fields can be used to stimulate neurons
  by inducing electrical currents in brain tissue

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