A predictive framework for evaluating models of semantic organization in free recall

Morton, Neal W; Polyn, Sean M.

doi:10.1016/j.jml.2015.10.002

Cited by 57 publications

(56 citation statements)

References 66 publications

(184 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the current study, unlike in these prior studies, we identified subsequent serial recall effects, which involve strong temporal organization, that were limited to the vlPFC. While this may appear inconsistent with the previous studies, it is not clear that temporal and semantic organization would be mediated by the same mechanisms (Morton and Polyn, 2016). Furthermore, there is some evidence suggesting that the vlPFC in particular contributes to episodic recall.…”

Section: Discussioncontrasting

confidence: 97%

Temporal binding within and across events

DuBrow

Davachi

2016

Neurobiology of Learning and Memory

193

182

View full text Add to dashboard Cite

Remembering the order in which events occur is a fundamental component of episodic memory. However, the neural mechanisms supporting serial recall remain unclear. Behaviorally, serial recall is greater for information encountered within the same event compared to across event boundaries, raising the possibility that contextual stability may modulate the cognitive and neural processes supporting serial encoding. In the present study, we used fMRI during the encoding of consecutive face and object stimuli to elucidate the neural encoding signatures supporting subsequent serial recall behavior both within and across events. We found that univariate BOLD activation in both the middle hippocampus and left ventrolateral prefrontal cortex (PFC) was associated with subsequent serial recall of items that occur across event boundaries. By contrast, successful serial encoding within events was associated with increased functional connectivity between the hippocampus and ventromedial PFC, but not with univariate activation in these or other regions. These findings build on evidence implicating hippocampal and PFC processes in encoding temporal aspects of memory. They further suggest that these encoding processes are influenced by whether binding occurs within a stable context or bridges two adjacent but distinct events.

show abstract

Section: Discussioncontrasting

confidence: 97%

Temporal binding within and across events

DuBrow

Davachi

2016

Neurobiology of Learning and Memory

193

182

View full text Add to dashboard Cite

show abstract

“…In calculating semantic similarity for the analyses reported below, we used LSA. We note that almost identical results are obtained when the same analyses are conducted using Word Association Space (WAS; Steyvers et al, 2004) cos(θ) values which some evidence suggests better predicts subjects' transitions than LSA (Morton & Polyn, 2016).…”

Section: Quantifying the Temporal Contiguity And Semantic Contiguity supporting

confidence: 60%

The role of control processes in temporal and semantic contiguity

Healey

Uitvlugt

2019

Mem Cogn

View full text Add to dashboard Cite

Atkinson and Shiffrin (1968) argued that performance on any memory task reflects the combined influence of both the fixed structure of the memory system and control processes tailored to the specific task. We investigated the role of control processes in governing the temporal contiguity and semantic contiguity effects in free recall-tendencies to organize recall based on proximity in the study list and pre-existing semantic associations. Subjects studied lists that contained four "clusters", each composed of four semantically associated words but presented in random order such that associates were not in adjacent serial positions. Subjects were given either standard free-recall instructions, instructions to focus on order-based associations (i.e., the original order of presentation), or meaning-based associations (i.e., preexisting semantic relationships). Replicating previous work, lists with strong semantic relationships resulted in a reduced overall temporal contiguity effect when recalled under standard free-recall instructions. However, under meaning-based recall instructions, the temporal contiguity effect was nearly eliminated. Detailed analyses of within-cluster transitions and an order reconstruction task revealed that temporal information was encoded, but control processes prevented it from dominating memory search. These results point to a need for more empirical work exploring how control processes change recall dynamics and for more theoretical work modeling the computational basis of these processes.

show abstract

“…[ 23,110] Distance Words with short semantic or associative distance are judged as more semantically related, remembered better in paired-associate learning tasks, retrieved closer to each other in free recall or verbal fluency tasks, produce stronger priming effects in naming tasks, and lead to faster sentence verification and recognition. [22,48,70,102,[111][112][113][114][115][116] [117,118] Words with low phonological or orthographic distance produce stronger priming effects.…”

Section: Centralitymentioning

confidence: 99%

New Perspectives on the Aging Lexicon

Wulff

Deyne

Jones

et al. 2019

Trends in Cognitive Sciences

123

126

View full text Add to dashboard Cite

The field of cognitive aging has seen considerable advances in describing the linguistic and semantic changes that happen during the adult life span to uncover the structure of the mental lexicon (i.e., the mental repository of lexical and conceptual representations). Nevertheless, there is still debate concerning the sources of these changes, including the role of environmental exposure and several cognitive mechanisms associated with learning, representation, and retrieval of information. We review the current status of research in this field and outline a framework that promises to assess the contribution of both ecological and psychological aspects to the aging lexicon. Cognitive Aging and the Mental Lexicon There is consensus in the cognitive sciences that human development extends well beyond childhood and adolescence, and there has been remarkable empirical progress in the field of cognitive aging in past decades [1]. Nevertheless, the role of environmental and cognitive factors in age-related changes in the structure and processing of lexical and semantic representations (see Glossary) is still under debate. For example, age-related memory decline is commonly attributed to a decline in cognitive abilities [2,3], yet some researchers have proposed that massive exposure to language over the course of one's life leads to knowledge gains that may contribute to, if not fully account for, age-related memory deficits [4-6]. We argue that to resolve such debates we require an interdisciplinary approach that captures how information exposure across adulthood may change the way that we acquire, represent, and recall information. We summarize recent developments in the field (Figure 1, Table 1) and propose a conceptual framework (Figure 2, Key Figure) and associated research agenda that argues for combining ecological analyses, formal modeling, and large-scale empirical studies to shed light on the contents, structure, and neural basis of the aging mental lexicon in both health and disease. Mental Lexicon: Aging and Cognitive Performance The mental lexicon can be thought of as a repository of lexical and conceptual representations, composed of organized networks of semantic, phonological, orthographic, morphological, and other types of information [7]. The cognitive sciences have provided considerable knowledge about the computational (Box 1; [8-11]) and neural basis (Box 2; [12,13]) of lexical and semantic cognition, and there has been considerable interest in how such aspects of cognition change across adulthood and aging [14,15]. Past work on the aging lexicon emphasized the amount of information acquired across the life span (e.g., vocabulary gains across adulthood; [15]); however, new evaluations using graphbased approaches suggest that both quantity and structural aspects of representations differ between individuals [16] and change across the life span [17-19]. Such insights were gathered, for example, from a large-scale analysis of free association data from thousands of individuals [17], ranging from 10 to ...

show abstract

A predictive framework for evaluating models of semantic organization in free recall

Cited by 57 publications

References 66 publications

Temporal binding within and across events

Temporal binding within and across events

The role of control processes in temporal and semantic contiguity

New Perspectives on the Aging Lexicon

Contact Info

Product

Resources

About