Topics in this Unit: Neurons and Neurotransmitters Central Nervous System and Parts of the Brain Endocrine System (glands and hormones) Peripheral Nervous.

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Topics in this Unit: Neurons and Neurotransmitters Central Nervous System and Parts of the Brain Endocrine System (glands and hormones) Peripheral Nervous System (somatic, autonomic, sympathetic, and parasympathetic) Brain Plasticity, Lateralization, and Cognitive Neuroscience Genetics Important Psychologists

Resources bases-of-behavior-flash-cards/ bases-of-behavior-flash-cards/ Notes gicalNotes.htm gicalNotes.htm Quizzes school/story.php?title=biological-bases-behaviorhttp:// school/story.php?title=biological-bases-behavior More Quizzes psychology/biological-bases-of- behavior/neuroanatomy/questions/speechhttp:// psychology/biological-bases-of- behavior/neuroanatomy/questions/speech

Diagram of a Neuron Video tutorial

Neuron Definitions Resting potential-positive ions on outside, negative ions on inside (waiting for impulse-PONI) Action potential-brief electrical charge (impulse) traveling down an axon Depolarization-domino effect when positive ions come in and negative ions come out, so that impulse can travel down axon Refractory period-after impulse is done, ions get pumped back into place (positive outside and negative inside) Threshold-minimum level of intensity needed to trigger action potential – all or nothing response

Brain Definitions Plasticity-refers to a young brain’s ability to “self-heal” or recover after damage Hemispherization/Lateralization-refers to brain’s unique left side/right side functions Cognitive neuroscience-interdisciplinary study of the brain activity linked with our mental processes

Types of Brain Imaging Electroencephalogram (EEG)-recording of brain waves showing electrical activity in brain Computed tomography scan (CT)- shows X-ray slices of brain to detect damage Positron emission tomography scan (PET)-displays brain activity of glucose while performing a given task Magnetic resonance imaging (MRI)-uses magnetic fields and radio waves to produce computer generated images of soft tissue Functional magnetic resonance imaging (fMRI)- type of MRI that reveals brain function and structure

Important Psychologists Paul Broca-experiments with patient who could only say “tan;” research reveals damaged location in brain that disrupts speaking Charles Darwin-evolution Michael Gazzaniga-split brain research by severing corpus callosum Roger Sperry-split brain research in cats Carl Wernicke-revealed location in brain that disrupts understanding in language