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Psychology11 Unit 3
Question | Answer |
---|---|
Absolute threshold | a minimum amount of stimulus that must be present for detection to occur |
Action potential | a quick electrical charge sent down the axon of the neuron |
Bottom–up processing | when sensations reach sensory receptors and then travel to your brain for processing |
Central nervous system (CNS) | consists of your brain and spinal cord and is responsible for gathering and responding to information |
Genetic transmission | the study of how genes are passed from one generation to the next |
Horomones | Chemical messengers created in endocrine glands that travel through the bloodstream |
Neurons | nerve cells that make up the nervous system and communicate to transfer information form the brain throughout our body |
Neurotransmitters | Chemical messengers that communicate between neurons or between a neuron and a muscle |
Peripheral nervous system (PNS) | branches out all over your body and serves as a communication system between your brain, spinal cord, and the rest of your body |
Perceptual set | assumptions and interpretations that influence the processing of sensations |
Reuptake | when neurotransmitters unable to find a receptor site either disperse, break down, or are reabsorbed |
sympathetic nervous system | mobilized the body |
synapse | the point of connection between the tip of the axon or the synaptic terminal (which sends information) and the dendrite of another neuron (which receives information) |
threshold | a specific level of stimulation that must be generated for a neural impulse or message to be sent |
top–down processing | When expectations or experiences are used to create our perception |