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BioPsychology
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Studies related to the neurotransmitters of the brain and our behavior
BioPsychology
Mind and Body are the same substance
Monoism
Physical world mind and body are seperate
Dualism
Hydrolic model; animal spirits flow through nerves responsible for behavior - pereal gland
Descartes
Electricity makes a frogs leg move; connection between physical explanation for behavior
Gialvani
Stimulated dog's brain to conduct movement
Fritz
Speed of Neuron conduction
Helmholtz
Specific functions in specific brain areas
Localization
Correlation to function to specific areas of the brain. 35 bumps on the head responsible for a person's emotion and intellect.
Phrenology
Specific brain areas for speech, thought and movement
Function Areas
Brain functions as a whole unit and not individually; opposite of phrenology
Equipotentiality
The smallest unit of heredity that makes protein. They are located on the chromosomes
Gene
How many chromosomes are there?
46 chromosomes; 23 from Male & 23 from Female
Double-Helix that contains all genes nudeotides volnerability - genes can contribute to a predisposition
DNA
Indicates how much of a trait is due to genes
Heredability
Specialized cells that convey information in chemical and electrical forms, transmit commands in other areas, and generate thought emotion and memory
Neurons
Recieves information from the outside world or other cells
Dendrites
Carrys information to other neurons (or muscle organs)
Axons
Branches at the end of axons
Terminals
The difference in electric charge between the inside and outside of an inactive neuron's membrane
Resting Potential
A force that moves ions from the side of the membrane where they are most abundant to the side where they are least abundant
Force of diffusion
These ions are concentrated on the outside of a neuronal membrane
Sodium ions
These ions are concentrated on the inside of a neuronal membrane
Potassium ions
A force which repels ions from the side of the membrane with the same charge and attracts them to the side with the opposite charge
Electrostatic pressure
A brief depolarization of the neural membrane that enables the neuron to communicate over long distances
Action Potential
Periods of reduced or zero responsiveness
Refactory Period
During this period, sodium channels will not reopen, and therefore the axon cannot fire again
Absolute refactory period
the few miliseconds after the absolute refactory period when the potassium channels remain partially open and the membrane has mostly recovered
Relative refactory period
Gaps between segments of myelin
Nodes of Ranvier
The connection between two neurons
Synapse
Causes excitation or inhibition of the post-synaptic membrane by opening channels directly
Ionotropic synapses
opens ion channels indirectly and slowly to produce longer lasting effects
Metabotrophic synapses
Most neurotransmitters are actively transported back into the terminals of the presynaptic cell
Reuptake
Neurons that adjust the number or sensitivity of their receptors to compensate for fluctuations in neurotransmitter release
Postsynaptic
Regulates synaptic activity
Glia
The brain and spinal cord
The Central Nervous System
Bundle of axons in the CNS
Tract
Group of cell bodies in the CNS
Nucleus
Bundles of axons in the peripheral nervous system
Nerve
Group of cell bodies in the peripheral nervous system
Ganglion
Involved in planning movements, and works together with the basal ganglia
Secondary Motor cortex
Involved in speech production
Broca's area
The largest and one of the most important regions of the human brain. Also plays an important role in organizing and planning.
Prefrontal cortex
Important for body sensation and spatial location
Parietal lobe
A surgical procedure that disconnects the prefrontal area from the rest of the brain
Frontal lobotomy
Author
jason.brooks
ID
168932
Card Set
BioPsychology
Description
BioPsych Chap 1 & 2
Updated
2012-10-08T05:46:17Z
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