Beyond the Cognitive Map: From Place Cells to Episodic Memory
MIT Press, 1999 - Medical - 420 pages
There are currently two major theories about the role of the hippocampus, a distinctive structure in the back of the temporal lobe. One says that it stores a cognitive map, the other that it is a key locus for the temporary storage of episodic memories. A. David Redish takes the approach that understanding the role of the hippocampus in space will make it possible to address its role in less easily quantifiable areas such as memory. Basing his investigation on the study of rodent navigation--one of the primary domains for understanding information processing in the brain--he places the hippocampus in its anatomical context as part of a greater functional system.
Redish draws on the extensive experimental and theoretical work of the last 100 years to paint a coherent picture of rodent navigation. His presentation encompasses multiple levels of analysis, from single-unit recording results to behavioral tasks to computational modeling. From this foundation, he proposes a novel understanding of the role of the hippocampus in rodents that can shed light on the role of the hippocampus in primates, explaining data from primate studies and human neurology. The book will be of interest not only to neuroscientists and psychologists, but also to researchers in computer science, robotics, artificial intelligence, and artificial life.
Results 1-5 of 5
Even when a visible cue is available, animals with parietal lesions reverted to
circling at the appropriate distance from the wall, a praxic strategy (Kolb and
Walkey, 1987; Kolb, 1990b). Parietal cortex may be involved in the
representation of the ...
This is a praxic strategy. Praxic strategies are sometimes called kinetic strategies,
referring to internally guided movements (from the Greek kinein, "to move,"
American Heritage, 1969). The termprax/c comes from the Greek word praxis, ...
Like other praxic strategies, path integration requires a mechanism for tracking
both the angles turned and the distance traveled. (A mechanism by which
rodents track angles turned will be discussed in chapter 5 and the complete path
and. Praxic. Strategies. The taxonomy of navigation developed in chapter 2
separated three non-locale-based strategies: taxon strategies, praxic strategies,
and route strategies. Because all three strategies can be understood as
Praxic Strategies Praxic strategies can be subdivided into spinal reflexes/patterns
and central sequencing strategies. What makes both of these praxic strategies is
that they require complex sequences of responses, but that once each ...