Physical dimension of the added signals in temporally defined schedules

MARIO SERRANO, SERGIO MORENO, ISAAC CAMACHO, FRANCISCO AGUILAR, CLAUDIO CARPIO

Abstract


Four groups of rats were exposed to temporally defined schedules (T = 60 s, tD = 30 s y tΔ = 30 s) in which tD and tΔ subcycles were correlated with exteroceptive signals belonging to either one or two physical dimensions: visualvisual, visual-auditory, auditory-visual, and auditory-auditory. Except for two rats in the visual-visual group, response rate was higher in tD than in tΔ. The response pattern within the T cycle show a maximal responding at the beginning of tD and few responses if any in the remainder of the cycle, except for the same two rats from the visual-visual group in which a scalloped pattern was observed during tΔ. Results are discussed in relation to similar experiments, highlight the effects of the interdimensional contrasts of the added signals.

Keywords


Temporally defined schedules; stimulus control; signal physical dimension; rats

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DOI: http://dx.doi.org/10.5514/rmac.v32.i1.23225


Editor in Chief:

Dr. Carlos J. Flores-Aguirre

editor_general@rmac-mx.org

ISSN: 0185-4534

ISSN Electrónico: 2007-0802