mcneely intro to psychology1 psychobiology. mcneely intro to psychology2 what in the world is this?...
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McNeely Intro to Psychology 1
Psychobiology
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McNeely Intro to Psychology 2
What in the world is
this?
The study of how behavior is influenced by our biological makeup.
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McNeely Intro to Psychology 3
• Monism• Dualism• Emergent
dualism
Mind-
Body
PASTEL ON PAPER 22" x 29"Dualism, within everyone. Existing as two within one. Gregory Stewert
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McNeely Intro to Psychology 4
• Central
• Peripheral
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McNeely Intro to Psychology 5
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McNeely Intro to Psychology 6
Picture
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McNeely Intro to Psychology 7
Picture
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McNeely Intro to Psychology 8
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McNeely Intro to Psychology 9
Brain
• Cerebral Cortex– Functions:
• Thought • Voluntary movement • Language • Reasoning • Perception
• Cerebellum– Fxn
• Movement • Balance • Posture
• Brain Stem– Fxns
• Breathing • Heart Rate • Blood Pressure
• Hypothalamus– fxns
• Body Temperature • Emotions • Hunger • Thirst • Circadian Rhythms
• Thalamus – Functions:
• Sensory processing
• Movement
• Limbic system– Fxns
• Emotions
• LT memory
• Hippocampus– fxns
• learning
• Memory
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McNeely Intro to Psychology 10
Neurons
• Picture for structure
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McNeely Intro to Psychology 11
Birth &
Development of
the Brai
n
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McNeely Intro to Psychology 12
http://www.brainmuseum.org/development/index.html
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McNeely Intro to Psychology 13
Neural
Migration
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McNeely Intro to Psychology 14
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McNeely Intro to Psychology 15
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McNeely Intro to Psychology 16
Neural
Communicatio
n
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McNeely Intro to Psychology 17
Action
Potential
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McNeely Intro to Psychology 18
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McNeely Intro to Psychology 19
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McNeely Intro to Psychology 20
Neurotransmitters
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McNeely Intro to Psychology 21
Peripheral Nervous System
Autonomic
Somatic
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McNeely Intro to Psychology 22
Autonomi
c Nervous System
Picture of Symp/Parasymp
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McNeely Intro to Psychology 23
ANS/PNS
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McNeely Intro to Psychology 24
Somatic
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McNeely Intro to Psychology 25
Neurotransmitter
Effects Too Much Too Little
Drugs
Acetylcholine Learning, memory, muscles
Trembling Alzheimers
Caffeine
Serotonin Sleep, mood, pain, aggression
Migraines Depression
Cocaine
Dopamine Pleasure, reward, attention, arousal
Schizophrenia
Parkinsons
Cocaine, caffeine,nicotine, MDMA
GABA General inhibition of neurons
Drowsy Anxious Alcohol
Glutimate General excitation of neurons
Tingly numbing
Drowsy Caffeine
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McNeely Intro to Psychology 26
• Acetylcholine – involved in voluntary movement, learning, memory, and sleep§ Too much acetylcholine is associated with depression, and too little in the hippocampus has been associated with dementia.Dopamine – correlated with movement, attention, and learning § Too much dopamine has been associated with schizophrenia, and too little is associated with some forms of depression as well as the muscular rigidity and tremors found in Parkinson’s disease.Norepinephrine – associated with eating, alertness § Too little norepinephrine has been associated with depression, while an excess has been associated with schizophrenia.Epinephrine – involved in energy, and glucose metabolism § Too little epinephrine has been associated with depression.Serotonin – plays a role in mood, sleep, appetite, and impulsive and aggressive behavior § Too little serotonin is associated with depression and some anxiety disorders, especially obsessive-compulsive disorder. Some antidepressant medications increase the availability of serotonin at the receptor sites.GABA (Gamma-Amino Butyric Acid) – inhibits excitation and anxiety § Too little GABA is associated with anxiety and anxiety disorders. Some antianxiety medication increases GABA at the receptor sites.Endorphins – involved in pain relief and feelings of pleasure and contentedness
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McNeely Intro to Psychology 27
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McNeely Intro to Psychology 28
• ACTING IN THE ENVIRONMENT. MOTOR SYSTEMS AND DISORDERS.
• Mapping the Motor Cortex• Wilder Penfield, a Canadian surgeon, took the next
exploratory voyage of the brain's organization starting in the 1950s. While operating on epileptic patients, Penfield applied electric currents to the brain's surface in order to find problem areas. Since the patients were awake during the operations, they could tell Penfield what they were experiencing. Probing some areas would trigger whole memory sequences. For one patient, Penfield triggered a familiar song that sounded so clear, the patient thought it was being played in the operating room. During these operations, Penfield watched for any movement of the patients' bodies. From this information, he was able to map out the motor cortex, the part of the brain you mapped out in this feature's activity.
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McNeely Intro to Psychology 29
pictures
SpinalCord
BrainSensoryNeuron
MotorNeuron