PSYC 2015 Chapter Notes - Chapter nervois system : Peripheral Nervous System, Spinal Nerve, Latrodectus

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Week Two- Brain and the Nervous System
Class Notes 1/20/15
Brief Review of major perspectives
Psychodynamic
Cognitive
o The way we think leads to the way we feel
o The way we think leads to the way we act
Learning
o Behavioral
o Socio-cognitive
Socio-cultural
o Social rules
o Rules & Roles in society
Biological
o Evolutionary
Feminist
Humanistic
o Emphasizes empathy and stress
Chapter 4- The brain and the nervous system
Neuroscientists in Psychology- study the brain in hopes of gaining a better understanding of
normal behavior and what the brain is capable of
Cognitive Neuroscientists- explore the biological foundations of consciousness, perception,
memory, and language
Social Neuroscientists- focus on processes like attachment and attitudes
Affective neuroscientists- study the central nervous system involvement in emotin, motivation,
and stress
Behavioral Neuroscientists- Study the basic processes like learning, conditioning, eating, and
sex
Brain
Chnages with learning and experience; it can rewrite itself with new connections to
maintain functions
Spinal Cord
Home of the reflec arc
Major pathway of information to and from the brain (touch, pain, etc.)
Peripheral Nervous System
Carries information to and from the spinal cord and the brain
o Spinal nerves attached to the spinal cord
Autonomic
o Controls the vital processes of the body
o It operates continuously involuntarily
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Week Two- Brain and the Nervous System
Class Notes 1/20/15
Somatic
o Responds to external senses and acts on the outside world
o It is the somatic system that allows yout o see an oncoming truch and act to get
out of its way
Autonomic System
Sympathetic
o The subdivision of the ANS that mobilizes bodily resources and increases the
output of energy during emotion and stress
Parasympathetic
o The subdivision of the ANS that operates during relaxed states
o Conserves energy
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Week Two- Brain and the Nervous System
Class Notes 1/20/15
Two types of Brain Cells
1. Neurons
a. Pruning- Getting rid of neural connections (young age)
b. Brain not fully developed until 22-23 yrs old
2. Glial Cell
The Glial Cell
Maintain ionic milieu of nerve cells
Modulate the rate of nerve signal propagation
Modulate synaptic action y controlling the uptake of neurotransmitters
Providing scaffold for some aspects of neurodevelopment
Aiding in or preventing recovery from neural injury
The Neuron
Brain communication specialists
With few exceptions you are born with all the neurons you will have
Around a billion when born
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