Open AccessJournal Article
A Context-Based Theory of Recency and Contiguity in Free Recall. Commentary. Authors' reply
Per B. Sederberg,Marc W. Howard,Michael J. Kahana,Marius Usher,Eddy J. Davelaar,Henk J. Haarmann,Yonatan Goshen-Gottstein +6 more
Reads0
Chats0
TLDR
The authors proposed a new model of free recall on the basis of M. Howard and M. J. McClelland's leaky-accumulator decision model, where recall decisions are controlled by a race between competitive leaky accumulators.Abstract:
The authors present a new model of free recall on the basis of M. W. Howard and M. J. Kahana's (2002a) temporal context model and M. Usher and J. L. McClelland's (2001) leaky-accumulator decision model. In this model, contextual drift gives rise to both short-term and long-term recency effects, and contextual retrieval gives rise to short-term and long-term contiguity effects. Recall decisions are controlled by a race between competitive leaky accumulators. The model captures the dynamics of immediate, delayed, and continual distractor free recall, demonstrating that dissociations between short- and long-term recency can naturally arise from a model in which an internal contextual state is used as the sole cue for retrieval across time scales.read more
Citations
More filters
Journal ArticleDOI
A shared neural ensemble links distinct contextual memories encoded close in time
Denise J. Cai,Daniel Aharoni,Daniel Aharoni,Tristan Shuman,Justin L. Shobe,Jeremy S. Biane,Weilin Song,Brandon Wei,Michael Veshkini,Mimi Q La-Vu,Jerry J. Lou,Jerry J. Lou,Sergio E. Flores,Sergio E. Flores,Isaac Kim,Yoshitake Sano,Miou Zhou,Karsten Baumgaertel,Ayal Lavi,Masakazu Kamata,Mark H. Tuszynski,Mark H. Tuszynski,Mark Mayford,Peyman Golshani,Peyman Golshani,Alcino J. Silva +25 more
TL;DR: It is demonstrated that contextual memories encoded close in time are linked by directing storage into overlapping ensembles by increasing cellular excitability and activating a common ensemble of CA1 neurons during two distinct context exposures rescued the deficit in linking memories.
Journal ArticleDOI
A context maintenance and retrieval model of organizational processes in free recall
TL;DR: The authors present the context maintenance and retrieval (CMR) model of memory search, a generalized version of the temporal context model of M. W. Howard and M. Kahana (2002a), which proposes that memory search is driven by an internally maintained context representation composed of stimulus-related and source-related features.
Journal ArticleDOI
Neural evidence for a distinction between short-term memory and the focus of attention
TL;DR: It is demonstrated that memory can be preserved across a brief delay despite the apparent loss of sustained representations, and the results suggest that, even for small memory loads not exceeding the capacity limits of STM, the active maintenance of a stimulus representation may not be necessary for its short-term retention.
Journal ArticleDOI
A unified framework for the functional organization of the medial temporal lobes and the phenomenology of episodic memory.
TL;DR: Findings from physiology, functional imaging, and lesion studies in humans, monkeys, and rodents relevant to the roles of medial temporal lobe subregions in recognition memory, as well as in short‐term memory and perception are reviewed.
Journal ArticleDOI
Hippocampal activity patterns carry information about objects in temporal context
TL;DR: Multivoxel pattern similarity analysis of fMRI data during retrieval of learned object sequences is used to systematically investigate hippocampal coding of object and temporal context information, consistent with models proposing that the hippocampus represents objects within specific temporal contexts.
References
More filters
Book ChapterDOI
Human memory ; A proposed system and its control processes
TL;DR: This chapter presents a general theoretical framework of human memory and describes the results of a number of experiments designed to test specific models that can be derived from the overall theory.
Journal ArticleDOI
A Solution to Plato's Problem: The Latent Semantic Analysis Theory of Acquisition, Induction, and Representation of Knowledge.
TL;DR: A new general theory of acquired similarity and knowledge representation, latent semantic analysis (LSA), is presented and used to successfully simulate such learning and several other psycholinguistic phenomena.
Journal ArticleDOI
Memory and the hippocampus: A synthesis from findings with rats, monkeys, and humans.
TL;DR: The role of the hippocampus is considered, which is needed temporarily to bind together distributed sites in neocortex that together represent a whole memory.
Journal ArticleDOI
A Theory of Memory Retrieval.
TL;DR: A theory of memory retrieval is developed and is shown to apply over a range of experimental paradigms, and it is noted that neural network models can be interfaced to the retrieval theory with little difficulty and that semantic memory models may benefit from such a retrieval scheme.
Journal ArticleDOI
Creating false memories: Remembering words not presented in lists.
TL;DR: The concept of false memories is not new; psychologists have been studying false memories in several laboratory paradigms for years as discussed by the authors and Schacter (in press) provides an historical overview of the study of memory distortions.