unit 3: biological bases of behavior
DESCRIPTION
Unit 3: Biological Bases of Behavior. Mr. McCormick A.P. Psychology. Essential Question. How are human thought and behavior affected by the following: The Nervous System The Endocrine System The Brain Genetics. Unit 3-A (A): The Neuron. Mr. McCormick A.P. Psychology. - PowerPoint PPT PresentationTRANSCRIPT
Unit 3:Unit 3:
Biological Biological Bases Bases
of Behaviorof BehaviorMr. McCormickMr. McCormickA.P. PsychologyA.P. Psychology
Essential QuestionEssential Question
How are human How are human thoughtthought and and behaviorbehavior affectedaffected by the by the following:following:• The Nervous SystemThe Nervous System• The Endocrine SystemThe Endocrine System• The BrainThe Brain• GeneticsGenetics
Unit 3-A (A):Unit 3-A (A):The NeuronThe Neuron
Mr. McCormickMr. McCormickA.P. PsychologyA.P. Psychology
Do-NowDo-Now(Discussion)(Discussion)
What is What is Biological PsychologyBiological Psychology??
What parts of the What parts of the bodybody do do Biological Biological Psychologists Psychologists primarily study?primarily study?
In understandingIn understanding psychology psychology, why do , why do you think it is you think it is importantimportant to understand to understand biological processesbiological processes??
Biological PsychologyBiological Psychology Biological Psychology:Biological Psychology:
A branch of Psychology A branch of Psychology concerned with the links concerned with the links between biology and between biology and behaviorbehavior
Biological Biological Psychologists:Psychologists:
Behavioral NeuroscientistsBehavioral Neuroscientists NeuropsychologistsNeuropsychologists Behavior GeneticistsBehavior Geneticists Physiological PsychologistsPhysiological Psychologists BiopsychologistsBiopsychologists
Biological PsychologyBiological Psychology
The NeuronThe Neuron
Neuron:Neuron: Nerve cellNerve cell Basic building block of the nervous Basic building block of the nervous
systemsystem
The NeuronThe Neuron
Types of Neurons:Types of Neurons:
Sensory Neurons:Sensory Neurons: Carry Carry incoming incoming informationinformation from from sensory receptors sensory receptors toto the the
brain/spinal cordbrain/spinal cord E.g. Perceiving something as “hot”E.g. Perceiving something as “hot”
Motor Neurons:Motor Neurons: Carry Carry outgoingoutgoing information information from from the the brain/spinal cordbrain/spinal cord to to the the
muscles/glandsmuscles/glands E.g. Clenching a fistE.g. Clenching a fist
Interneurons:Interneurons: Located Located withinwithin the the brain/spinal cordbrain/spinal cord CommunicateCommunicate internallyinternally between between sensory inputs sensory inputs and and motor motor
outputsoutputs E.g. ReflexesE.g. Reflexes
The NeuronThe Neuron
Provide an Provide an exampleexample of information of information that that sensory neurons sensory neurons may may transmit.transmit.
Provide an Provide an exampleexample of information of information that that motor neurons motor neurons may transmit. may transmit.
Provide an Provide an exampleexample of information of information that that interneuronsinterneurons may transmit.may transmit.
Parts of the NeuronParts of the Neuron
The Firing of a NeuronThe Firing of a Neuron Neurons transmit messages when stimulated by our senses, Neurons transmit messages when stimulated by our senses,
or triggered by chemicals of other neuronsor triggered by chemicals of other neurons
Resting Potential:Resting Potential: Fluid interior of axon: negatively charged ionsFluid interior of axon: negatively charged ions Fluid exterior of axon membrane: positively charged ionsFluid exterior of axon membrane: positively charged ions
Threshold:Threshold: Level of stimulation required to trigger a neural impulse Level of stimulation required to trigger a neural impulse (action (action
potential)potential) Excitatory signals Excitatory signals (accelerator) (accelerator) minus inhibitory signals minus inhibitory signals (brakes) (brakes)
must reach minimum intensitymust reach minimum intensity
Action Potential:Action Potential: Neural impulseNeural impulse Depolarization occursDepolarization occurs Brief electrical charge that travels down an axonBrief electrical charge that travels down an axon ““All-or-None” ResponseAll-or-None” Response
The Firing of a NeuronThe Firing of a Neuron
ReviewReview What is a What is a neuronneuron??
Differentiate Differentiate between the between the 33 types of types of neuronsneurons:: Sensory NeuronsSensory Neurons Motor NeuronsMotor Neurons InterneuronsInterneurons
Discuss the Discuss the functionsfunctions of the following parts of the of the following parts of the neuronneuron:: DendritesDendrites AxonAxon Myelin SheathMyelin Sheath Terminal BranchesTerminal Branches
What causes What causes neuronsneurons to to firefire??
HomeworkHomework
Research Study # 2: Research Study # 2: “More “More Experience = Bigger Brain” (Pgs. Experience = Bigger Brain” (Pgs. 11-18)11-18)
Unit 3-A FRQ:Unit 3-A FRQ:
Unit 3-A Quiz: Unit 3-A Quiz: “The Neuron”“The Neuron”