Table 2.
Predictions.
Prediction | Evidentiary status | |
---|---|---|
A | NMDA receptor block of amygdala during late Stage II abolishes fear during Stage III | Unknown |
B | Contexts that are in recognized categories tend to require relatively long exposures for creation of their representations (as indicated by immediate shock deficits), whereas representations of contexts in unknown categories tend to be created relatively rapidly. | Unknown |
C | The duration of the immediate shock deficit decreases if BaconREM has been pre-exposed to the context | Fanselow (1986) |
D | Contexts with remote representations (Stage III) usually have longer immediate shock deficits and slower fear onsets than contexts having recently created representations | Unknown |
E | When a context’s representation becomes remote, fear conditioned to it when its representation was new hyper-generalizes to unfamiliar contexts in the same category | Many examples; e.g., Wiltgen and Silva (2007), Wiltgen et al. (2010), Winocur et al. (2007, 2009) |
F | False conditioning is more likely to occur when a conditioned representation is remote than when it is recent | Unknown |
G | During Stage II of systems consolidation, BaconREM generalizes as though in Stage I if tested with contexts very similar to the conditioned one and as though in Stage III if tested with more distinct contexts; however, it is always hippocampus-dependent until Stage III. Thus, hyper-generalization to novel contexts may occur well before fear becomes hippocampus-independent if the conditioned and generalization contexts are very different. | Unknown |
H | Hyper-generalization of remote fear does not occur if test contexts are familiar. | Unknown |
J | Fear conditioned when a representation was recently created hypo-generalizes to novel contexts that are in a category different from that of the conditioned context. | Unknown |
K | Hyper-generalization of remote fear is much less likely if a conditioned context is extremely well-known. | Biedenkapp and Rudy (2007) |
L | Hyper-generalization is abolished and hippocampus-dependence of a remote context fear memory is restored by exposure to the conditioned context (“reminder” effect). | Winocur et al. (2009), Wiltgen and Silva (2007) |
M | Reminder effects occur only if exposure to the conditioned context is long enough to generate a BRep sufficient to cause updating. | Unknown |
N | Pharmacological block of new learning during reminder exposures prevents abolition of hyper-generalization | Unknown |