Results 11 to 20 of about 31,379 (258)

STIMULUS DEFINITION IN CONDITIONAL DISCRIMINATIONS [PDF]

open access: yesJournal of the Experimental Analysis of Behavior, 1986
With a customary arrangement of three horizontally aligned stimulus/response keys, two rhesus monkeys learned conditional hue and line discriminations—an “identity‐matching” procedure. First, sample stimuli were always presented on the center key, and comparison stimuli were presented on the two side keys.
I H, Iversen, M, Sidman, P, Carrigan
openaire   +2 more sources

Blockade of the M1 muscarinic acetylcholine receptors impairs eyeblink serial feature-positive discrimination learning in mice.

open access: yesPLoS ONE, 2020
The serial feature-positive discrimination task requires the subjects to respond differentially to the identical stimulus depending on the temporal context given by a preceding cue stimulus.
Md Ashrafur Rahman   +4 more
doaj   +1 more source

Discriminated conditioned suppression in rats. [PDF]

open access: yesPsychology & Neuroscience, 2012
experiment evaluated the effects of superimposing the Estes-Skinner Conditioned Emotional Response (CER) procedure on one of two components of a multiple schedule. The question was whether CER conditioning occurred under contextual control. The procedure had four experimental phases: (1) baseline of operant responding under a two-component multiple ...
Ribeiro, Thais Arantes   +3 more
openaire   +3 more sources

ERRORLESS LEARNING OF A CONDITIONAL TEMPORAL DISCRIMINATION [PDF]

open access: yesJournal of the Experimental Analysis of Behavior, 2011
In the present study we extended errorless learning to a conditional temporal discrimination. Pigeons' responses to a left-red key after a 2-s sample and to a right-green key after a 10-s sample were reinforced. There were two groups: One learned the discrimination through trial and error and the other through an errorless learning procedure.
Arantes, Joana, Machado, Armando
openaire   +3 more sources

CONDITIONED REINFORCEMENT BY CONDITIONAL DISCRIMINATIVE STIMULI [PDF]

open access: yesJournal of the Experimental Analysis of Behavior, 1988
A concurrent‐chains schedule was used to examine how a delay to conditional discriminative stimuli affects conditioned reinforcement strength. Pigeons' key‐peck responses in the initial link produced either of two terminal links according to independent variable‐interval 30‐s schedules.
openaire   +2 more sources

Assessing Symmetry by Comparing the Acquisition of Symmetric and Nonsymmetric Conditional Relations in a Capuchin Monkey

open access: yesInternational Journal of Psychological Research, 2016
The present study presents a procedure to assess the property of symmetry by comparing the acquisition of conditional relations that are consistent and inconsistent with this property in a capuchin monkey (Sapajus spp.).
Paulo S. D. Soares Filho   +4 more
doaj   +3 more sources

Conditional discrimination in the goldfish [PDF]

open access: yesAnimal Learning & Behavior, 1974
Two goldfish were reinforced for responding in the presence of a compound S+ consisting of a bright light and a loud sound. S− compounds differed from the S+ with respect to light intensity, sound intensity, or both. Responding in the presence of each compound was evaluated according to several alternative models of stimulus combination.
David C. Zuckerman, Donald S. Blough
openaire   +1 more source

Contextual control of conditional discrimination of the own behavior in pigeons

open access: yesInternational Journal of Psychological Research, 2008
An experiment in which a pigeon was trained in contextual discrimination of its own behavior was carried out. When the experimental chamber was illuminated with a constant light, the pigeon had to peck on a red (or green) key in the sample component ...
Andrés García, Santiago Benjumea
doaj   +1 more source

A note on the measurement of stimulus discriminability in conditional discriminations [PDF]

open access: yesBulletin of the Psychonomic Society, 1985
In a conditional discrimination, pigeons’ responses on a right key were reinforced in the presence of a 0° line orientation, and responses on a left key were reinforced in the presence of any of five other orientations, 15° through 75°. Variable-interval schedules of reinforcement for right and left responses were changed over five experimental ...
K. Geoffrey White   +2 more
openaire   +1 more source

CONDITIONAL DISCRIMINATION WITH AMBIGUOUS STIMULI [PDF]

open access: yesJournal of the Experimental Analysis of Behavior, 1983
Five pigeons learned a two‐key conditional discrimination. When background color on both keys was red, pecks on the key with a horizontal line produced food. When the color was green, pecks on the key with a vertical line produced food. During part of the experiment, color was presented on only one of the keys.
openaire   +2 more sources

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