Examlex
Xanthines increase levels of the chemical __________ in invertebrates, leading to overstimulation and death.
Primary Reinforcer
A stimulus that satisfies a basic need or instinct and is inherently rewarding, such as food or water.
Illegal Drugs
Substances whose production, sale, or use is prohibited by law due to their potential for abuse or harm.
Unconditioned Response
An unconditioned response is a natural, unlearned reaction to an unconditioned stimulus, such as salivating when smelling food.
Puzzlebox
A problem-solving device or situation used in experiments, often to study learning and problem-solving skills in animals.
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