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Chapter 3

Chapter 3 - COMPLETE Textbook Notes

13 Pages
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Department
Psychology
Course Code
PSY100Y5
Professor
Dax Urbszat

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Psych Chapter 3
Outline
Communication in the Nervous System
oNervous Tissue: The Basic Hardware
oThe Neural Impulse: Using Energy to Send Information
oThe Synapse: Where Neurons Meet
oNeurotransmitters and Behaviours
Organization of the Nervous System
oThe Peripheral Nervous Systems
oThe Central Nervous System
Looking Inside the Brain: Research Methods
oElectrical Recordings
oLesioning
oElectrical Stimulation of the Brain
oTranscranial Magnetic Stimulation
oBrain-Imaging Procedures
The Brain and Behaviour
oThe Hindbrain
oThe Midbrain
oThe Forebrain
oThe Plasticity of the Brain
Right Brain/Left Brian: Cerebral Laterality
oBisecting the Brain: Split-Brain Research
oHemispheric Specialization in the Intact Brain
www.notesolution.com
The Endocrine System
Heredity and Behaviour: Is it All In The Genes?
oBasic Principles of Genetics
oInvestigating Hereditary Influence
oThe Interplay of Heredity and Environment
The Evolutionary Bases of Behaviour:
oDarwins Insights
oSubsequent Refinements to Evolutionary Theory
oBehaviours as Adaptive Traits
Communication in the Nervous System
Nervous Tissue: The Basic Hardware
Cells in nervous system fall into two major categories:
oGlia
oNeurons
Neurons: The individual cells in the nervous system that receive, integrate, and
transmit information.
oNeurons permit communication within the nervous system.
oSoma: Soma, or cell body, contains the cell nucleus and much of the chemical
machinery common to most cells. Soma is Greek for body.
oDendrites: Part of the neuron that are specialized to receive information.
Greek word for tree. Each branch is a dendrite.
www.notesolution.com
oAxon: Long, thin fibre that transmits signals away from the soma to the
other neurons or to muscles or glands.
oMyelin Sheath: Insulating material derived from glia cells. They encase
some axons.
oTerminal Buttons: Small knobs that secrete chemicals called
neurotransmitters.
oSynapse: Junction where information is transmitted from one neuron to
another. Greek for junction.
oInformation is received at the dendrites, passed through the soma along the
axon, and transmitted to the dendrites of other cells at meeting points called
synapses.
Glia: Cells found throughout the nervous system that provide various types of
support for neurons. Greek for glue.
oSmaller than the neurons, but outnumber them 10 to 1.
oSupply nourishment to neurons, help remove thee neurons waste products,
provide insulation around many axons (Myelin sheath).
The Neural Impulse: Using Energy to Send Information
The Neuron at Rest: A Tiny Battery
www.notesolution.com

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Description
Psych Chapter 3 Outline Communication in the Nervous System o Nervous Tissue: The Basic Hardware o The Neural Impulse: Using Energy to Send Information o The Synapse: Where Neurons Meet o Neurotransmitters and Behaviours Organization of the Nervous System o The Peripheral Nervous Systems o The Central Nervous System Looking Inside the Brain: Research Methods o Electrical Recordings o Lesioning o Electrical Stimulation of the Brain o Transcranial Magnetic Stimulation o Brain-Imaging Procedures The Brain and Behaviour o The Hindbrain o The Midbrain o The Forebrain o The Plasticity of the Brain Right BrainLeft Brian: Cerebral Laterality o Bisecting the Brain: Split-Brain Research o Hemispheric Specialization in the Intact Brain www.notesolution.com The Endocrine System Heredity and Behaviour: Is it All In The Genes? o Basic Principles of Genetics o Investigating Hereditary Influence o The Interplay of Heredity and Environment The Evolutionary Bases of Behaviour: o Darwins Insights o Subsequent Refinements to Evolutionary Theory o Behaviours as Adaptive Traits Communication in the Nervous System Nervous Tissue: The Basic Hardware Cells in nervous system fall into two major categories: o Glia o Neurons Neurons: The individual cells in the nervous system that receive, integrate, and transmit information. o Neurons permit communication within the nervous system. o Soma: Soma, or cell body, contains the cell nucleus and much of the chemical machinery common to most cells. Soma is Greek for body. o Dendrites: Part of the neuron that are specialized to receive information. Greek word for tree. Each branch is a dendrite. www.notesolution.com
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