Ch. 2 Lecture Notes
Ch. 2 Lecture Notes Psych
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This 0 page Class Notes was uploaded by Brandon Johnson on Thursday February 18, 2016. The Class Notes belongs to Psych at Middle Tennessee State University taught by Corey M Teague in Winter 2016. Since its upload, it has received 12 views. For similar materials see General Psychology in Psychlogy at Middle Tennessee State University.
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Date Created: 02/18/16
Chapter 2 Biological Perspective Two main parts Peripheral Nervous System and Hindbrain Midbrain Forebrain Cerebral Cortex 4 lobes Frontal lobe prefrontal posterior parietal lobe occipital lobe temporal lobe Cerebellumlitte brain works together with different parts Corpus collosum Lateralization of a function Plasticity a rewiring of the brain Answers Central nervous system peripheral nervous system Brain and spinal cord Peripheral nervous system Previousold information Hindbrain Midbrain Forebrain Breathing and Heart rate Auditory and Visual Forebrain Forebrain 10Past 11Cerebral Cortex 12Four Four lobes 13Frontal Lobe 14Parietal Lobe 150ccipital Lobe 16Temporal Lobe 17Cerebellum 18Corpus Collosum 19Language 20Lateralization 21Right 22Plasticity QWFQP PWN The brain develops from back to front Hindbrain Extension of spinal cord Controls blood pressure heart rate and blood pressure Madellum Cerebellum Controls balance and motor coordination Midbrain quotrelay stationquot information from senses relayed through midbrain visual information coordinated with motor movement Forebrain Highly developed brain Regulates many complex aspects of behavior and mental phenomena quotWhat makes us humanquot Critical thinking and such Stops growing around 2526 Hypothalamus regulates eating drinking body temperature etc When you are hungry or thirsty you will seek out food or water Thalamus Receives sensory information and routes it to higher brain centers not smell Hippocampus Helps form new memory Amygdal Creates associations between sensory amp emotion aggressionfear Cerebral Cortex Pg56 outer surface of the forebrain Fro ntal Speech and motor behavior Parietal body sensations Occipital Vision Temporal Hearing Q The brain structure responsible for receiving information from sensory neurons and routing it to higher brain regions so we can make sense of the information much linke an air traf c controller routing air traffic is the A Thalamus Cerebral Hemispheres Brain divided in 2 halves Corpus Callosum quotconnecting bridgequot of nerve bers between hemispheres Lateralization Localization of speci c brain functions 1 Left language and logic 2 Right Spatial abilities amp pattern recognition Each hemisphere controls opposite side of the body contralateral arrangement Left Cerebral Hemisphere controls right side Right Cerebral Hemisphere controls left side Sensory information sentto brain quotcontralaterallyquot and if the CC is severed hemispheres can t communicate Hemispheres function independently Neural Plasticity Ability of neurons to change in structure and function If injury results in brain tissue destruction other neurons must take over lost functions of dead neurons if recovery is to occur Damage is not always physical but it can be emotional as well Brain damage suffered early in life is less traumatic than damage suffered as an adult Infants and toddlers 50 more brain synapses than adults Allow undamaged neurons to more easily quotpick up the slackquot for neighboring dead brain tissue Day 92313 Chapter 2 Biological Bases of Behavior Human nervous system Allows us to gain information about quothappeningsquot in and outside of body and to make an appropriate response Sensorv Svstems Provides information about the environment Motor Systems In uences muscles and organs to respond in some way Three functions of nervous system 1 Receive Input 2 Integrate sensory information with previous information 3 Guide Actions output Organization of Nervous System Central Nervous SystemCNS Encased in bone skull and spinal cord body s quotcentral information processorquot Peripheral Nervous System PNS Remainder not encased in bone blue part of gure receives and transmits information throughout the body Divided into two systems Somatic System Transmits information from skin senses and muscles to CNS carries messages from CNS to muscles that move skeleton More of a voluntary thing Autonomic carries messages back and forth between CNS and heart lungs and other organs Divided in two different groups Automatic happens whether we want it to or not When you see those blue light in your mirror how do you feel Fight or ight Sympathetic right side of gure prepares body for action quotemergency respondingquot When that cop goes around you and pulls over the person in front of you how do you feel Parasympathetic monitors and regulates various physiological funcUons Communication in the Nervous System Neurons Special nerve cells which have the ability to communicate with one another Has three parts to it Axons carry transmit signals away from cell body to connections with other nerve cells Dendrites receive signals from axons from axons of other neurons carry signal to cell body Travels across the gap by a release of chemicals Mylin fatty waxy substance at the end of an axon End of Chapter 2
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