STIMULUS CONTROL AND COMPOUNDING WITH AMBIENT ODOR AS A DISCRIMINATIVE STIMULUS ON A FREE-OPERANT BASELINE

A Test of Three Models for Stimulus Compounding with Children.

Initial characterization of PMMA as a discriminative stimulus.

The phenylisopropylamine PMMA or N-methyl-1-(4-methoxyphenyl)-2-aminopropane, a structural hybrid of paramethoxyamphetamine (PMA) and methamphetamine, has been previously shown to unexpectedly lack amphetamine-like or hallucinogen-like stimulus properties in animals. For example, in tests of stimulus generalization, neither a (+)amphetamine stimulus nor a DOM stimulus generalized to PMMA. It ha...

Action as stimulus control

SUMMARY According to conventional psychological wisdom the relationship between perception and action is uni-directional: Perceiving informs an individual about the environment and acting results as a more or less adequate response to the perceived situation. Following Dewey (1896) and others we argue that this is only half of the story. In fact, humans commonly act not in order to respond to, ...

Some factors involved in the stimulus control of operant behavior.

The stimuli which are present when an operant is reinforced modify the subsequent frequency of emission of the response. For example, if a hungry pigeon is reinforced with food when it pecks a translucent key upon which a monochromatic light is projected, it will subsequently peck most rapidly when the light is of the same wavelength. Guttman (3) has reported that a difference of 2 millimicrons...

FORMALIN AS A PERIPHERAL NOXIOUS STIMULUS CAUSES A BIPHASIC RESPONSE IN NUCLEUS PARAGIGANTOCELLULARIS NEURONS

The effects of formalin as a peripheral noxious stimulus on the activity of lateral paragigantocellularis nucleus (LPGi) neurons were examined. Spontaneous activity ofLPGi neurons was recorded after confirmation of their responsiveness to acute pain, and thereafter formalin (50 µL, 2.5%) was injected in the contralateral hindpaw. The response of the LPGi neurons was monitored for 60 min. A...