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. Author manuscript; available in PMC: 2021 Nov 1.
Published in final edited form as: Psychol Rev. 2020 Jun 11;127(6):972–1021. doi: 10.1037/rev0000199

Table 2:

Pavlovian phenomena not explicitly simulated but within the explanatory scope of the PVLV framework. NOTE: not impl = not implemented

Phenomenon Sim Comment
Variable reward timing see 1c Drives PV (VS) firing over broader time window
Autoshaping see 1d See sign-tracking
Cond orienting resp (COR) see 1d See sign-tracking
Incentive salience see 1d See sign-tracking
Extinction (aversive) see 2a,b Largely follows appetitive pattern.
Reinstatement see 2b US-reactivation of CS-specific reps in Amygdala? (not impl).
Spontaneous recovery see 2b Internal context drift? (not impl).
Partial reinf extinction effect see 2c Reliable in Pavlovian case? (not impl).
Unblocking-by-identity 3a
Unblocking, upward see 3a Consistent with std RPE (trivial).
Unblocking, downward Complex timing required – unclear if real (not impl).
Overexpectation see 3a Same account as unblocking-by-identity in our model.
Overshadowing - Strongly dependent on relative CS salience (not impl).
Reversal learning - Essentially sum of 1a-c and 4a,b, also salience (not impl).
Counterconditioning - Like reversal learning, pits valence reversal competitive effects against any acquired salience effects (not impl).
Latent inhibition - Habituation of novelty-triggered bursts? (not impl).
Sensory preconditioning - Cortically mediated and largely associative?
Variable reward magnitude - See discussion in Neurobiological Substrates and Mechanisms.