scholarly journals Hippocampal activity during recognition memory co-varies with the accuracy and confidence of source memory judgments

Hippocampus ◽  
2011 ◽  
Vol 22 (6) ◽  
pp. 1429-1437 ◽  
Author(s):  
Sarah S. Yu ◽  
Jeffrey D. Johnson ◽  
Michael D. Rugg
Keyword(s):  
Recognition Memory ◽  
Source Memory ◽  
Hippocampal Activity

scholarly journals In Search of Recollection and Familiarity Signals in the Hippocampus

2010 ◽  
Vol 22 (1) ◽  
pp. 109-123 ◽  
Author(s):  
Peter E. Wais ◽  
Larry R. Squire ◽  
John T. Wixted
Keyword(s):  
Prefrontal Cortex ◽  
Recognition Memory ◽  
Source Memory ◽  
Medial Temporal Lobe ◽  
Parahippocampal Gyrus ◽  
Memory Strength ◽  
Similar Extent ◽  
High Confidence ◽  
Hippocampal Activity ◽  
Memory Experiment

fMRI studies of recognition memory have often been interpreted to mean that the hippocampus selectively subserves recollection and that adjacent regions selectively subserve familiarity. Yet, many of these studies have confounded recollection and familiarity with strong and weak memories. In a source memory experiment, we compared correct source judgments (which reflect recollection) and incorrect source judgments (often thought to reflect familiarity) while equating for old–new memory strength by including only high-confidence hits in the analysis. Hippocampal activity associated with both correct source judgments and incorrect source judgments exceeded the activity associated with forgotten items and did so to a similar extent. Further, hippocampal activity was greater for high-confidence old decisions relative to forgotten items even when source decisions were at chance. These results identify a recollection signal in the hippocampus and may identify a familiarity signal as well. Similar results were obtained in the parahippocampal gyrus. Unlike in the medial temporal lobe, activation in prefrontal cortex increased differentially in association with source recollection.

No enhanced recognition memory, but better source memory for faces of cheaters

2009 ◽  
Vol 30 (3) ◽  
pp. 212-224 ◽  
Author(s):  
Axel Buchner ◽  
Raoul Bell ◽  
Bettina Mehl ◽  
Jochen Musch
Keyword(s):  
Recognition Memory ◽  
Source Memory

Distinct patterns of hippocampal activity associated with color and spatial source memory

Hippocampus ◽  
2021 ◽  
Author(s):  
Haley A. Fritch ◽  
Preston P. Thakral ◽  
Scott D. Slotnick ◽  
Robert S. Ross
Keyword(s):  
Source Memory ◽  
Hippocampal Activity ◽  
Spatial Source

scholarly journals A Dynamic Approach to Recognition Memory

2017 ◽  
Author(s):  
Gregory Edward Cox ◽  
Rich Shiffrin
Keyword(s):  
Decision Making ◽  
Recognition Memory ◽  
Response Time ◽  
Source Memory ◽  
Dynamic Approach ◽  
Short Term ◽  
Trade Off ◽  
The Core ◽  
Speed Accuracy ◽  
Over Time

We present a dynamic model of memory that integrates the processes of perception, retrieval from knowledge, retrieval of events, and decision making as these evolve from one moment to the next. The core of the model is that recognition depends on tracking changes in familiarity over time from an initial baseline generally determined by context, with these changes depending on the availability of different kinds of information at different times. A mathematical implementation of this model leads to precise, accurate predictions of accuracy, response time, and speed-accuracy trade-off in episodic recognition at the levels of both groups and individuals across a variety of paradigms. Our approach leads to novel insights regarding word frequency, speeded responding, context reinstatement, short-term priming, similarity, source memory, and associative recognition, revealing how the same set of core dynamic principles can help unify otherwise disparate phenomena in the study of memory.

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