caption: The firing-rate patterns from four successive recording sessions in a single cell
exif: {"Image DocumentName": "The firing-rate patterns from four successive recording sessions in a single cell", "Image ImageDescription": "In both types of mutants the interference with LTP does not prevent the formation of place fields. Although the place fields formed in the absence of LTP are larger and fuzzier in outline than normal, LTP is not required for the basic transformation of sensory information into place fields. LTP is required for fine-tuning the properties of place cells and ensuring their stability over time. As noted earlier, in wild-type mice a place field forms within minutes after an animal enters a new en-vironment and, once formed, remains stable in that environment for months. In contrast, when mutant mice are removed from a space and then put back into the same space, cells that were previously active in that space form different place fields. Figure 63-14B The firing-rate patterns from four successive recording sessions in a single cell from a wild-type mouse and a mouse carrying a gene for a persistently active Ca2+/calmodulin-dependent kinase. Before each recording session the animal was taken out of the cylinder and reintroduced into it. In each of the four sessions the positional firing pattern for the wild-type cell is stable. By contrast, the pattern of the mutant cell is unstable in sessions 2 and 3.", "Image XResolution": "200", "Image YResolution": "200", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}