Test Two Flashcards
Neuron
Nerve cells contains:
- Dendrites: receive stimulation
- Axon: Passes the message on
Hypothalamus
Lies underneath the the thalamus near the bottom center of the brain
- controls the pituitary gland and also regulates homeostasis (hunger, thirst, body temperature
Amygdala
Links perception and thoughts about the world with their emotional meaning
- Effects negative emotion: fear and anger
- Responsible for detecting fear and preparing for emergency events
Hippocampus
Processes memories
Cortex
Outermost layer of the brain
- Wraps around the hypothalamus, thalamus, amygdala and hippocampus
Neocortex
This is the largest part of the cortex
Frontal Cortex
This is divided into two lobes
- Aspect of cognition: ability to plan ahead and to anticipate consequences
- Aspects of emotional experience: empathy and moral reasoning
Electroencephalography (EEG)
Electrodes are placed on the scalp to pick up electrical signals generated by the brain activity
- Strengths: High temporal precision
- Weakness: Poor spatial localization
Megnetoencephalography (MEG)
Detect magnetic indications of brain activity
- Opposed to electrical
- Strengths: High temporal precision
- Weakness: Poor spatial localization
Positron Emission Tomography (PET)
Create a map of brain activity by following the location of a harmless radioactive tracer injected into the blood stream
- The harder the brain works the more blood it needs
- Follows blood flow
Functional Magnetic Resonance Imaging (fMRI)
Monitors magnetic pulses generated by oxygen in the blood to map where the brain is the most active at a given moment
- BOLD: blood oxygen level dependent
- BOLD compares how much the brain lights up from activity one to activity two
Somatic Marker Hypothesis
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Corpus Callosum
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Anterior Cingulate
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Neurotransmitter
Communication between neurons
Synapse
gap between the neurons
Hormone
Biological chemicals that affect the entire body
Central Nervous System
brain and spinal cord
- epinephrine and norepinephrine work together here
Peripheral Nervous System
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Endorphins
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Serotonin
NAC
- stability
- neuroticism, agreeableness, conscientiousness
Gonads
testies and overies
Adrenal Cortex
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Epinephrine
the fight in flight
- increases heart rate