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Physiological Notes 1/27

by: Cali Hagen

Physiological Notes 1/27 Psych 325

Cali Hagen

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About this Document

History and introduction of physiological psychology
Physiological Psychology
Dr. Figgy
Psychology, physiological
75 ?




Popular in Physiological Psychology

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This 3 page Bundle was uploaded by Cali Hagen on Tuesday February 9, 2016. The Bundle belongs to Psych 325 at University of Wisconsin - Stevens Point taught by Dr. Figgy in Winter 2016. Since its upload, it has received 30 views. For similar materials see Physiological Psychology in Psychlogy at University of Wisconsin - Stevens Point.


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Date Created: 02/09/16
1/27  History o Initially the heart was the in control of mental capabilities o Hippocrates  Brain is in control o Early dissections and observations  Brain injury gave further support o Galen  Animal spirits passed along nerves  Nerve cells to communicate o DaVinci  Anatomical drawings  Ventricular system  Cerebral spinal fluid (CSF)  3 ventricles o Anatomists emphasized external surfaces of brain  Brain was a gift from God  Behind God in creation of Adam painting o 1633: Desecrate  Wrote book on brain physiology  Proposed spinal reflexes and neural pathways o Phrenologist map – map where certain functions were in the brain  Bumps on skull matched to different behaviors  No localization of function  Phrenology – assigned separate functions to cortical areas o Paul Broca  Language ability is restricted due to brain injury  Broca area – production of language o New phrenology map  Higher cognitive function = in thontal cortex o Biological psychology arose in the 20 century  Important studies:  Learning  Memory  Conditioning  Perception  Motivation  Hebb  Described neural connection  Cell assemblies/ Hebbian synapses  Terms o Biological psychology – study of biological bases of psychological processes and behavior o Neuroscience – study of the nervous system o Behavioral neuroscience – another name for biological psychology  5 perspectives o Describing – in terms of acts or processes or of results or functions  Ex. Arm movements: what muscles are contracting or what it is being used for o Evolution – species can be compared to study evolution of brain and behavior  Continuity of behavior/biological processes (conserved traits)  Because of common ancestry  Ex. Nurse young, neurotransmitters  Differences (divergent traits)  Adapt to environments  Ex. Written language  Developmental (ontogeny) – process of growing up/old  Look at behaviors, functions and mechanisms change over time  Mechanisms – each organism contain many neurons  Neural activity o Electrical and chemical activity o Sequence o Where increase/decrease of activity in the brain  Application – research can be applied to humans especially in diseases of the brain  Treatments to diseases  3 approaches o Somatic interaction – alteration of a structure or function to see how behavior is altered  Independent variable – factor that is being applied  Dependent variable – what is measured in response to the independent variable  Usually a behavior  Ex. administering a hormone, stimulation of brain regions electrically, cut connections between parts o Correlation – measures how much a body measure varies with a behavioral measure, but cannot determine to what extent  Ex. brain size and learning scores, hormone level and strength of mating behavior, enlarged cerebral ventricles and schizophrenic symptoms o Behavioral intervention – manipulate a behavior to see how structure or function is altered  Independent/dependent variables  Ex. male in presence of female, present visual stimulus, give training  Neural plasticity – describe the ability of the brain to be changed by environment and by experience o Neurogenesis  Throughout brain and lifetime o Dendritic spines in the brain can change shape in seconds  Increase communication  Experience changes  Exercise can cause changes o Neuroplasticity is greater the younger you are o Social interactions  Can result in brain changes  Isolation = detrimental  Cook: looked at amygdala reaction to social interaction in rats


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