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A weightless astronaut in an orbiting satellite is
Brain Size
The physical measurement of the brain's volume, often discussed in relation to cognitive abilities or evolutionary biology.
Conditioned Stimulus
A previously neutral stimulus that, after association with an unconditioned stimulus, comes to elicit a conditioned response.
Unconditioned Stimulus
In classical conditioning, a stimulus that naturally and automatically triggers a response without requiring any learning.
Conditioned Taste Aversion
An acquired response where an individual avoids consuming a certain food or drink due to a previous negative experience, such as illness.
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