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CHAPTER 2: COGNITIVE NEUROSCIENCE VOCABULARY COGNITIVE NEUROSCIENCE -Study of physiological basis of cognition NEURON -Basic building blocks of brain & transmission lines of nervous system NERVE NET -Complex pathway for conducting signals uninterrupted through network (Not true) GRANDMOTHER CELL -Neurons that responds only to specific stimulus (idea not used) -Proposed by JERRY LETTVIN (1960s) NEURON DOCTRINE -Individual cells transmit signals in nervous system & these cells aren’t continuous w/ other cells CELL BODY -Contains mechanisms to keep cell alive DENDRITES -Brought out from cell body to receive signals from other neurons AXON (NERVE FIBERS) -Transmit signals to other neurons RECEPTORS -Specialized neurons that pick up information from environment SYNAPSE -Small gap in between neuron’s axon & dendrites or cell body to another neuron NEURAL CIRCUIT
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-Connection of neurons MICROELECTRODES -Hallow glass filled w/ conductive salt solution that can pick up electrical RECORDING ELECTRODE REFERENCE ELECTRODE -Located outside of tissue OSCILLOSCOPE -Indicated difference in charge by vertical position of small dot that creates line as moves across screen NERVE IMPULSE (ACTION POTENTIAL) -Electrical signal -Mechanism which information transmitted throughout nervous system
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This note was uploaded on 02/23/2012 for the course PSY 305 taught by Professor Reeves during the Spring '08 term at University of Texas at Austin.

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