Title: Psychobiology
1Psychobiology
2What in the world is this?
- The study of how behavior is influenced by our
biological makeup.
3Mind-Body
- Monism
- Dualism
- Emergent dualism
Connection
PASTEL ON PAPER 22" x 29"Dualism, within
everyone. Existing as two within one. Gregory
Stewert
4The Nervous System
5The Nervous System
6CNS
7Brain
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9Brain
- Cerebral Cortex
- Functions
- Thought
- Voluntary movement
- Language
- Reasoning
- Perception
- Cerebellum
- Fxn
- Movement
- Balance
- Posture
- Brain Stem
- Fxns
- Breathing
- Heart Rate
- Blood Pressure
- Hypothalamus
- fxns
- Thalamus
- Functions
- Sensory processing
- Movement
- Limbic system
- Fxns
- Emotions
- LT memory
- Hippocampus
- fxns
- learning
- Memory
10Neurons
11Birth Development of the Brain
12http//www.brainmuseum.org/development/index.html
13Neural Migration
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16Neural Communication
17Action Potential
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20Neurotransmitters
21Peripheral Nervous System
22Autonomic Nervous System
23ANS/PNS
24Somatic
25Neurotransmitter 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
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 Parkinsons disease.Norepinephri
ne 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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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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