Intrapair associations in verbal discrimination learning

Configural associations in discrimination learning.

In 4 experiments, Sprague-Dawley rats and homing pigeons received training with an A+ AB0 BC+ discrimination, in which food (+) accompanied trials with A and BC. Food was not presented (0) on trials with the compound AB. Subsequent test trials revealed that responding during C by itself, or the compound ABC, was slower than during either A or BC. Responding during the ABC compound was also foun...

Discrimination learning in a verbal conditioning situation.

Implicit learning of new verbal associations.

Implicit learning of a series of new verbal associations was studied in four experiments. The first two experiments demonstrated that learning of a repeating sequence of verbal stimuli may occur without awareness, but only when the stimulus-response mapping requires an attention-demanding activity: Subjects who were unaware of the sequence learned when instructed to categorize the stimuli, but ...

Intrapair birthweight discordance in twins.

BACKGROUND Birthweight differences in twin pairs influence their perinatal outcome as well as growth and development. Growth-discordant twins have not been well characterized in our local environment. OBJECTIVE To determine the frequency of birthweight discordance in live-born twin pairs and document some factors that may influence it. METHODS In this cross-sectional study, 104 live-born tw...

Eventological Models of Verbal Associations