Word Association Spaces for Predicting Semantic Similarity Effects in Episodic Memory.

2006 ◽  
pp. 237-249 ◽  
Author(s):  
Mark Steyvers ◽  
Richard M. Shiffrin ◽  
Douglas L. Nelson
Keyword(s):  
Episodic Memory ◽  
Semantic Similarity ◽  
Word Association

scholarly journals Narratives bridge the divide between distant events in episodic memory

2020 ◽  
Author(s):  
Brendan Cohn-Sheehy ◽  
Angelique Delarazan ◽  
Zachariah Reagh ◽  
Nidhi Mundada ◽  
Andrew P. Yonelinas ◽  
...  
Keyword(s):  
Episodic Memory ◽  
Semantic Similarity ◽  
Higher Order ◽  
Past Experience ◽  
Consolidation Process ◽  
Multiple Events ◽  
Sentence Level ◽  
Post Hoc ◽  
Nighttime Sleep

Many studies suggest that information about past experience, or episodic memory, is divided into discrete units called “events.” Paradoxically, we can often remember experiences that span multiple events. Events that occur in close succession might simply be bridged because of their proximity to one another, but many events occur farther apart in time. Intuitively, some kind of organizing principle should enable these temporally-distant events to become bridged in memory. We tested the hypothesis that episodic memory exhibits a narrative-level organization, enabling temporally-distant events to be better remembered if they form a coherent narrative. Furthermore, we tested whether a post-encoding consolidation process is necessary to integrate temporally-distant events. Participants learned and subsequently recalled events from fictional stories, in which pairs of temporally-distant events involving side-characters (“sideplots”) either formed one coherent narrative or two unrelated narratives. In three experiments, participants were cued to recall the stories either immediately, after a 24-hour delay, or after a 12-hour delay which elapsed during daytime (“wake”) versus nighttime (“sleep”). Participants recalled more information about coherent than unrelated narrative events, in most delay conditions, and the delay and sleep manipulations indicated that post-encoding consolidation was not necessary to integrate temporally-distant narrative events. Post-hoc modeling across experiments suggested that sentence-level semantic similarity could not solely account for the coherence benefit. This reliable memory benefit for coherent narrative events supports theoretical accounts which propose that higher-order semantic structures scaffold episodic memory.

scholarly journals Left perirhinal cortex codes for semantic similarity between written words defined from cued word association

NeuroImage ◽  
2019 ◽  
Vol 191 ◽  
pp. 127-139 ◽  
Author(s):  
Antonietta Gabriella Liuzzi ◽  
Patrick Dupont ◽  
Ronald Peeters ◽  
Rose Bruffaerts ◽  
Simon De Deyne ◽  
...  
Keyword(s):  
Semantic Similarity ◽  
Word Association ◽  
Perirhinal Cortex

scholarly journals Extracting Word Synonyms from Text using Neural Approaches

2019 ◽  
pp. 45-51 ◽  
Author(s):  
Nora Mohammed
Keyword(s):  
Natural Language Processing ◽  
Natural Language ◽  
Semantic Similarity ◽  
Language Processing ◽  
Word Association ◽  
Research Problem ◽  
Neutral Network ◽  
Computational Techniques ◽  
Word Embeddings ◽  
Feed Forward

Extracting synonyms from textual corpora using computational techniques is an interesting research problem in the Natural Language Processing (NLP) domain. Neural techniques (such as Word2Vec) have been recently utilized to produce distributional word representations (also known as word embeddings) that capture semantic similarity/relatedness between words based on linear context. Nevertheless, using these techniques for synonyms extraction poses many challenges due to the fact that similarity between vector word representations does not indicate only synonymy between words, but also other sense relations as well as word association or relatedness. In this paper, we tackle this problem using a novel 2-step approach. We first build distributional word embeddings using Word2Vec then use the induced word embeddings as an input to train a feed-forward neutral network using annotated dataset to distinguish between synonyms and other semantically related words

scholarly journals Narratives bridge the divide between distant events in episodic memory

2021 ◽  
Author(s):  
Brendan I. Cohn-Sheehy ◽  
Angelique I. Delarazan ◽  
Jordan E. Crivelli-Decker ◽  
Zachariah M. Reagh ◽  
Nidhi S. Mundada ◽  
...  
Keyword(s):  
Episodic Memory ◽  
Semantic Similarity ◽  
Memory Consolidation ◽  
Past Experience ◽  
Narrative Coherence ◽  
High Level Architecture ◽  
Immediate Recall ◽  
Sentence Level ◽  
High Level ◽  
Post Hoc

AbstractMany studies suggest that information about past experience, or episodic memory, is divided into discrete units called “events.” Yet we can often remember experiences that span multiple events. Events that occur in close succession might simply be linked because of their proximity to one another, but we can also build links between events that occur farther apart in time. Intuitively, some kind of organizing principle should enable temporally distant events to become bridged in memory. We tested the hypothesis that episodic memory exhibits a narrative-level organization, enabling temporally distant events to be better remembered if they form a coherent narrative. Furthermore, we tested whether post-encoding memory consolidation is necessary to integrate temporally distant events. In three experiments, participants learned and subsequently recalled events from fictional stories, in which pairs of temporally distant events involving side characters (“sideplots”) either formed one coherent narrative or two unrelated narratives. Across participants, we varied whether recall was assessed immediately after learning, or after a delay: 24 hours, 12 hours between morning and evening (“wake”), or 12 hours between evening and morning (“sleep”). Participants recalled more information about coherent than unrelated narrative events, in most delay conditions, including immediate recall and wake conditions, suggesting that post-encoding consolidation was not necessary to integrate temporally distant events into a larger narrative. Furthermore, post hoc modeling across experiments suggested that narrative coherence facilitated recall over and above any effects of sentence-level semantic similarity. This reliable memory benefit for coherent narrative events supports theoretical accounts which propose that narratives provide a high-level architecture for episodic memory.

Sociocultural memory development research drives new directions in gadgetry science

2019 ◽  
Vol 42 ◽  
Author(s):  
Penny Van Bergen ◽  
John Sutton
Keyword(s):  
Episodic Memory ◽  
Autobiographical Memory ◽  
Developmental Psychology ◽  
Cross Cultural ◽  
Memory Development ◽  
Development Research ◽  
Cultural Research ◽  
New Directions ◽  
Cross Cultural Research

Abstract Sociocultural developmental psychology can drive new directions in gadgetry science. We use autobiographical memory, a compound capacity incorporating episodic memory, as a case study. Autobiographical memory emerges late in development, supported by interactions with parents. Intervention research highlights the causal influence of these interactions, whereas cross-cultural research demonstrates culturally determined diversity. Different patterns of inheritance are discussed.

Let's call a memory a memory, but what kind?

2019 ◽  
Vol 42 ◽  
Author(s):  
Nazim Keven
Keyword(s):  
Episodic Memory ◽  
Animal Cognition ◽  
The World

Abstract Hoerl & McCormack argue that animals cannot represent past situations and subsume animals’ memory-like representations within a model of the world. I suggest calling these memory-like representations as what they are without beating around the bush. I refer to them as event memories and explain how they are different from episodic memory and how they can guide action in animal cognition.

Word Association of Time-Altered Auditory and Sual Stimuli in Aphasia

1981 ◽  
Vol 24 (2) ◽  
pp. 233-246 ◽  
Author(s):  
Robert Goldfarb ◽  
Harvey Halpern
Keyword(s):  
Word Association

Positive Arousal Enhances the Consolidation of Item Memory

2015 ◽  
Vol 74 (2) ◽  
pp. 91-104 ◽  
Author(s):  
Bo Wang
Keyword(s):  
Episodic Memory ◽  
Memory Consolidation ◽  
Source Memory ◽  
Emotional Arousal ◽  
Theoretical Models ◽  
Memory Test ◽  
Learning Phase ◽  
Item Memory ◽  
Memory Tests ◽  
Immediate Memory

Emotional arousal induced after learning has been shown to modulate memory consolidation. However, it is unclear whether the effect of postlearning arousal can extend to different aspects of memory. This study examined the effect of postlearning positive arousal on both item memory and source memory. Participants learned a list of neutral words and took an immediate memory test. Then they watched a positive or a neutral videoclip and took delayed memory tests after either 25 minutes or 1 week had elapsed after the learning phase. In both delay conditions, positive arousal enhanced consolidation of item memory as measured by overall recognition. Furthermore, positive arousal enhanced consolidation of familiarity but not recollection. However, positive arousal appeared to have no effect on consolidation of source memory. These findings have implications for building theoretical models of the effect of emotional arousal on consolidation of episodic memory and for applying postlearning emotional arousal as a technique of memory intervention.

Sign in / Sign up

Export Citation Format

Share Document