General transfer across sensory modalities survives reductions in the original conditioned reflex in the rabbit

Savings in classical conditioning in the rabbit as a function of extended extinction

“…The modest evidence for facilitation of cross-modal acquisition in the present experiment stands in stark contrast to repeated previous demonstrations in the rabbit NM preparation that transfer across modalities survives extinction of responding to the original CS (Kehoe et al, 1995;Kehoe et al, 1984;Macrae & Kehoe, 1999). In the previous studies, however, many more initial acquisition trials were used than in the present experiment.…”

“…The first form is rapid reacquisition: When the original CS is again paired with the unconditioned stimulus (US), reacquisition of the CR is more rapid than acquisition in a naive control group (Macrae & Kehoe, 1999;Napier, Macrae, & Kehoe, 1992;Smith & Gormezano, 1965). The second form of savings occurs in cross-modal acquisition (CMA): When a new CS from a different modality is introduced after extinction, CR acquisition to the new CS is more rapid than it is in a naive control group (Kehoe, Morrow, & Holt, 1984;Macrae & Kehoe, 1999). The third form of savings is concurrent recovery, which occurs during CMA: When the original CS is tested, CRs to the original CS recover up to 75% of their original likelihood, despite the fact that the original CS has not been reinforced since initial acquisition training (Kehoe, Horne, & Macrae, 1995;Macrae & Kehoe, 1999).…”

“…If, however, the original aversion was extinguished, the facilitation of learning failed to appear. In contrast, in rabbit eyelid conditioning, cross-modal savings consistently survive moderate extinction (Kehoe et al, 1984;Macrae & Kehoe, 1999) after substantial acquisition training.…”

Summation and configuration between and within sensory modalities in classical conditioning of the rabbit

“…Previous examinations of generalization in the rabbit NM preparation have shown that some elements would be shared by the tone and noise stimuli (Kehoe & Napier, 1991). However, the light stimulus would share virtually no elements with the auditory stimuli Kehoe, Morrow, & Holt, 1984). Accordingly, training with T+, N+ , and L+ would be construed as TX+, NX+, and L+, where X represents the set of shared elements.…”

Discrimination Reversal Facilitates Contextual Conditioning in Rats’ Appetitive conditioning

“…However, this is not always the case. Kehoe, Morrow, and Holt (1984) found that extinction of one CS facilitated subsequent conditioning of a CS of different modality. Although this latter result may be also interpreted as a learningto-learn effect, these results are also consistent with the idea that surprising events may facilitate subsequent learning (for a review see Courville, Daw, & Touretsky, 2006).…”