The Hippocampus as a Cognitive Map

work by O’Keefe and Nadel

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July 21, 2026

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The work of John O'Keefe and Lynn Nadel, particularly their book The Hippocampus as a Cognitive Map, proposed that the hippocampus in the brain functions as a cognitive map. This theory, building on earlier ideas, suggests the hippocampus creates a mental representation of an animal's environment, enabling navigation and spatial memory. O'Keefe's discovery of "place cells" within the hippocampus, which fire when an animal is in a specific location, provided experimental evidence for this concept. This research has significant implications for understanding spatial cognition and neurological conditions like Alzheimer disease, where spatial disorientation is common.123

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John O’Keefe
…and colleague Lynn Nadel published The Hippocampus as a Cognitive Map, describing in detail a theory that placed the cognitive map—the existence of which was first proposed in 1948 by American psychologist Edward C. Tolman—specifically in the hippocampus. The theory met with skepticism but later gained support through key discoveries…
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…and colleague Lynn Nadel published The Hippocampus as a Cognitive Map, describing in detail a theory that placed the cognitive map—the existence of which was first proposed in 1948 by American psychologist Edward C. Tolman—specifically in the hippocampus. The theory met with skepticism but later gained support through key discoveries…
Read More