Biopsychology - Biological Psychology Reductionism: the...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
Biological Psychology
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Reductionism: the attempt to explain complex phenomena by reducing them to combinations of simpler components. Nervous System Cells Neurons: the cells in your nervous system that process information. How do neurons communicate? Glia: other cells in the brain that insulate neurons and help to remove neuronal waste products. There are five times more glial cells in the brain than there are neurons. Sensory Neurons: carry messages from sense receptor cells toward the central nervous system. Motor Neurons: carry messages away from the central nervous system. Interneurons: relay messages from sensory neurons to other interneurons or to motor neurons. They account for most of the neurons in the brain.
Background image of page 2
Cell Body (soma): contains the nucleus of the cell. Dendrites: widely branching structures that receive transmissions from other neurons. Axon: a single, long, thin, straight fiber with branches near its tip. Myelin Sheath: aids in the transmission of impulses along the axon. Neuron
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
How does an axon send communication? Action Potential: an excitation that travels along an axon at a constant strength, no matter how far it must travel. This happens through a series of electrical and chemical processes. all-or-none-law: If an action potential occurs at all, it will always be of the same magnitude. How does an action potential occur?
Background image of page 4
Resting Potential: an electrical polarization across the membrane of an axon, with a negative charge inside the axon.
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Synapse: the specialized junction between one neuron and another. A neuron releases a chemical that either excites or inhibits the next neuron. Where does neuronal communication occur?
Background image of page 6
Presynaptic Ending: one of the endings of the several branches at the end of an axon.
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 8
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 27

Biopsychology - Biological Psychology Reductionism: the...

This preview shows document pages 1 - 8. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online