Renewal of Formerly Conditioned Fear in Rats after Extensive Extinction Training
By Noriko Tamai, S. Nakajima. International Journal of Comparative Psychology, 2000
98 citations recorded by the source corpus.
We explored renewal of formerly acquired and then extinguished fear in rats. After 24 paired trials of a tone and an electric shock, acquired fear to the tone was extinguished in another context by repeated exposure to the tone alone. Conditioned fear was behaviorally extinguished by the 32nd trial of tone exposure; 40 or 80 additional extinction trials (i.e., a total of 72 or 112 extinction trials) were administered to independent groups of rats. Extinguished fear was renewed by testing the tone in the original context, independently of the amount of the preceding extinction training. The finding suggests that this type of fear renewal is difficult to prevent even after extensive extinction training prior to context change. Fear renewal also took place by shifting contexts after 72 extinction trials, when the fear had been extinguished in the context of acquisition. This kind of renewal was, however, prevented by extending extinction training to 112 trials.
Subfields: Behavioral Neuroscience, Cognitive Neuroscience, Social Psychology
View Paper: https://www.semanticscholar.org/paper/f9097a1d8a022b21e004c4477fe4b08bbed7adef
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Citations in the corpus
- Revision of Retrieval Theory of Forgetting: What does Make Information Context-Specific? (2006, unknown): “AAB renewal is usually harder to find than ABA or ABC renewal (e.g., Tamai & Nakajima, 2000), suggesting that these latter forms of renewal involve additional mechanisms to the context change between extinction and testing.”
- Context and behavioral processes in extinction. (2004, background): “Here again, conditioned responding returns (see Bouton and Ricker 1994; Tamai and Nakajima 2000), although there is currently less evidence of this " AAB renewal " effect in operant conditioning than in Pavlovian conditioning (see Nakajima et al. 2000; Crombag and Shaham 2002).”
- Context, ambiguity, and unlearning: sources of relapse after behavioral extinction. (2002, background): “Recent research indicates that ABA renewal (Rauhut et al 2001) and ABC renewal (Gunther et al 1998) can occur after more than 160 extinction trials, and 100 extinction trials produce no less ABA renewal than 20 trials (Rauhut et al 2001; see also Tamai and Nakajima 2000).”
- Massive extinction treatment attenuates the renewal effect (2003, background): “Notably, other researchers have failed to observe an attenuation of renewal with increased extinction experience (e.g., Bouton & Swartzentruber, 1989; Rauhut et al., 2001; Tamai & Nakajima, 2000).”