RT Journal Article
T1 Differential effects of forward or simultaneous conditioned stimulus-unconditioned stimulus intervals on the defensive behavior system of the Norway rat (Rattus norvegicus)
A1 Esmorís Arranz, Francisco José
A1 Pardo Vázquez, José Luis
A1 Vázquez García, Gustavo Adolfo
K1 Fear conditioning
K1 Rats
K1 Defensive behavior
K1 Simultaneous conditioning
K1 Forward conditioning
K1 Freezing
K1 Flight
K1 Escape-from-fear
K1 Behavior-systems
K1 Species-specific defense reactions
AB To test several predictions derived from a behavior-systems approach, the authors assessed Pavlovian fear conditioning in rats after 30 trials of forward, simultaneous, or unpaired training. Direct evidence of conditioned fear was collected through observation of flight and freezing reactions during presentations of the conditioned stimulus (CS) alone. The authors also tested the CS's potential to reinforce an instrumental escape response in an escape-from-fear paradigm. On the one hand, rats that received forward training showed conditioned freezing, but no conditioned flight was observed. On the other hand, rats that received simultaneous training showed conditioned flight, but no conditioned freezing was observed. Rats that received either forward or simultaneous pairings showed instrumental learning of the escape-from-fear response. Implications for several theories of Pavlovian conditioning are discussed.
PB American Psychological Association
SN 2329-8456
YR 2003
FD 2003-10
LK http://hdl.handle.net/10347/34530
UL http://hdl.handle.net/10347/34530
LA eng
NO Esmorís-Arranz, F. J., Pardo-Vázquez, J. L., & Vázquez-García, G. A. (2003). Differential effects of forward or simultaneous conditioned stimulus-unconditioned stimulus intervals on the defensive behavior system of the Norway rat (Rattus norvegicus).Journal of Experimental Psychology: Animal Behavior Processes, 29(4), 334–340
NO © American Psychological Association, 2003. This paper is not the copy of record and may not exactly replicate the authoritative document published in the APA journal. The final article is available, upon publication, at: https://doi.org/10.1037/0097-7403.29.4.334
NO University of Santiago de Compostela
DS Minerva
RD 28 abr 2026