The hippocampal formation is necessary for rats to learn and remember configural discriminations.

By J. Rudy, R. Sutherland. 1989

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Citations in the corpus

Tracking the Emergence of Conceptual Knowledge during Human Decision Making (2009, unknown): “In spatial probe trials (Figure 2C upper panel), one fractal (i.e. either F1 (illustrated) or F2) was presented on either the left (illustrated) or the right.”
Modeling hippocampal and neocortical contributions to recognition memory: a complementary-learning-systems approach. (2003, result): “This finding shows that our 614 cortical model has some (albeit reduced) sensitivity to whether items occurred together at study, unlike other models (e.g., Rudy & Sutherland, 1989) that posit that cortex supports memory for individual features but not novel feature conjunctions.”
Conjunctive representations in learning and memory: principles of cortical and hippocampal function. (2001, background): “…Rudy and Sutherland (1989) reported that damage to the hippocampus impaired both the acquisition and retention of the negative patterning problem; this result has been replicated several times (e.g., Alvarado & Rudy, 1995b; Sutherland, McDonald, Hill, & Rudy, 1989; Sutherland et al., in press).”
Why there are complementary learning systems in the hippocampus and neocortex: insights from the successes and failures of connectionist models of learning and memory. (1995, background): “As Rudy and Sutherland (1994) point out, spared learning in such cases appears to depend on the formation of associations of a simple, discrete cue with an unconditional stimulus or the availability of reinforcement.”
Memory and the hippocampus: a synthesis from findings with rats, monkeys, and humans. (1992, methodology): “…or related structures impair the ability of rats to learn odor discriminations (Eichenbaum , Fagan, Mathews, & Cohen, 1988), timing tasks (Meek, Church, & Olton, 1984), and configural discriminations that involve unique combinations of auditory or visual stimuli (Rudy & Sutherland, 1989).”