The Espinet and the perceptual learning effects in flavour aversion conditioning: do they depend on a common inhibitory mechanism?

The Quarterly Journal of Experimental Psychology : QJEP
Antonio A ArtigasJose Prados

Abstract

In three experiments rats were given short or long preexposure (4 or 10 sessions) to two compound flavours, AX and BX, according to an intermixed or a blocked schedule. Following preexposure, aversion conditioning trials were given with AX as the conditioned stimulus (CS). In Experiments 1 and 2, retardation and summation tests were then carried out to assess the inhibitory properties of B (an Espinet procedure). In Experiment 3, test trials evaluated generalization from AX to BX (the standard perceptual learning procedure). The results showed that B performed as an inhibitor of the unconditioned stimulus (US; an Espinet effect) only after long intermixed preexposure, whereas a reliable perceptual learning effect was observed both after short and after long preexposure. The observation that B had no detectable inhibitory properties after short preexposure casts doubt on the suggestion that inhibitory learning is responsible for perceptual learning after brief exposure to AX and BX.

References

Jun 8, 2001·The Quarterly Journal of Experimental Psychology. B, Comparative and Physiological Psychology·D M DwyerN J Mackintosh
Jun 22, 2002·The Quarterly Journal of Experimental Psychology. B, Comparative and Physiological Psychology·Esther Mondragón, Geoffrey Hall
Feb 4, 2003·Journal of Experimental Psychology. Animal Behavior Processes·C A J Blair, Geoffrey Hall
Jun 19, 2004·The Quarterly Journal of Experimental Psychology. B, Comparative and Physiological Psychology·D M DwyerR C Honey

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Citations

Apr 26, 2006·Journal of Experimental Psychology. Animal Behavior Processes·M E MundyR C Honey
Apr 26, 2006·Journal of Experimental Psychology. Animal Behavior Processes·Antonio A ArtigasJose Prados
Aug 9, 2016·Learning & Behavior·Antonio A Artigas, Jose Prados

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