The Role of Relational Information in Similarity and Semantic Representations

2004 ◽  
Author(s):  
Matt Jones ◽  
Bradley C. Love
Keyword(s):  
Semantic Representations ◽  
Relational Information

The role of relational information in contingent capture.

2010 ◽  
Vol 36 (6) ◽  
pp. 1460-1476 ◽  
Author(s):  
Stefanie I. Becker ◽  
Charles L. Folk ◽  
Roger W. Remington
Keyword(s):  
Contingent Capture ◽  
Relational Information

Scale-invariant Characteristics of Forgetting: Toward a Unifying Account of Hippocampal Forgetting across Short and Long Timescales

2020 ◽  
Vol 32 (3) ◽  
pp. 386-402
Author(s):  
Talya Sadeh ◽  
Yoni Pertzov
Keyword(s):  
Time Dependent ◽  
Scale Invariant ◽  
Relational Information ◽  
Recent Advances ◽  
Growing Body ◽  
Neural Underpinnings ◽  
Important Extension ◽  
Long Timescales ◽  
Prevailing View

After over 100 years of relative silence in the cognitive literature, recent advances in the study of the neural underpinnings of memory—specifically, the hippocampus—have led to a resurgence of interest in the topic of forgetting. This review draws a theoretically driven picture of the effects of time on forgetting of hippocampus-dependent memories. We review evidence indicating that time-dependent forgetting across short and long timescales is reflected in progressive degradation of hippocampal-dependent relational information. This evidence provides an important extension to a growing body of research accumulated in recent years, showing that—in contrast to the once prevailing view that the hippocampus is exclusively involved in memory and forgetting over long timescales—the role of the hippocampus also extends to memory and forgetting over short timescales. Thus, we maintain that similar rules govern not only remembering but also forgetting of hippocampus-dependent information over short and long timescales.

scholarly journals Focusing on what matters: Modulation of the human hippocampus by relational attention

2018 ◽  
Author(s):  
Natalia I. Córdova ◽  
Nicholas B. Turk-Browne ◽  
Mariam Aly
Keyword(s):  
Visual Perception ◽  
Activity Patterns ◽  
The Other ◽  
Temporal Relations ◽  
Relational Processing ◽  
Relational Information ◽  
Dynamic Display ◽  
Pattern Similarity ◽  
Online Extraction

AbstractHippocampal episodic memory is fundamentally relational, consisting of links between events and the spatial and temporal contexts in which they occurred. Such relations are also important over much shorter time periods, during online visual perception. For example, how do we assess the relative spatial positions of objects, their temporal order, or the relationship between their features? Here, we investigate the role of the hippocampus in such online relational processing by manipulating visual attention to different kinds of relations in a dynamic display. While undergoing high-resolution fMRI, participants viewed two images in rapid succession on each trial and performed one of three relational tasks, judging the images’ relative: spatial positions, temporal onsets, or sizes. As a control, they sometimes also judged whether one image was tilted, irrespective of the other; this served as a baseline item task with no demands on relational processing. All hippocampal regions of interest (CA1, CA2/3/DG, subiculum) showed reliable deactivation when participants attended to relational vs. item information. Attention to temporal relations was associated with more robust deactivation than the other conditions. One possible interpretation of such deactivation is that it reflects hippocampal disengagement. If true, there should be reduced information content and noisier, less reliable patterns of activity in the hippocampus for the temporal vs. other tasks. Instead, analyses of multivariate activity patterns revealed more stable hippocampal representations in the temporal task. Additional analyses showed that this increased pattern similarity was not simply a reflection of the lower univariate activity. Thus, the hippocampus differentiates between relational and item processing even during online visual perception, and its representations of temporal relations in particular are robust and stable. Together, these findings suggest that the relational computations of the hippocampus, known to be important for memory, extend beyond this purpose, enabling the rapid online extraction of relational information in visual perception.

scholarly journals Composition of multiple dimension representations in context during real-time comprehension

2017 ◽  
Author(s):  
Yao-Ying Lai ◽  
David Braze ◽  
Maria Mercedes Piñango
Keyword(s):  
Real Time ◽  
Eye Movement ◽  
Lexical Retrieval ◽  
Semantic Representations ◽  
Multiple Dimension ◽  
Processing Cost ◽  
Additional Processing ◽  
Movement Study ◽  
Aspectual Verbs

We investigate the role of context in the comprehension of competing semantic representations of sentences with aspectual verbs (AspVs). On the Structured Individual Hypothesis, AspVs select for structured individuals as their complement, construed as a directed axis along various dimensions. During comprehension, the verb’s lexical functions are exhaustively retrieved and the AspV+complement composition yields multiple mutually exclusive dimension representations, which are later constrained by context. Results from this eye-movement study show that AspV sentences engender additional processing cost independent of context. That is, while processing multiple dimension representations is costly, the exhaustive lexical retrieval and dimension composition are initially encapsulated from context.

scholarly journals Novel metaphor translation is modulated by translation direction

2021 ◽  
pp. 1-16
Author(s):  
Katarzyna Jankowiak ◽  
Olha Lehka-Paul
Keyword(s):  
Cognitive Load ◽  
Process Research ◽  
Semantic Representations ◽  
Translation Process ◽  
Linguistic Form ◽  
L1 English

Abstract Previous translation process research has pointed to an increased cognitive load when translating metaphoric compared to literal language. Yet, studies conducted thus far have not examined the role of translation direction (i.e., L1–L2 vs. L2–L1) in novel metaphor translation and have not tested whether and how this process might be modulated by the linguistic form of a novel meaning. In the present study, Polish (L1) – English (L2) translation students translated novel nominal metaphors (A is B), novel similes (A is like B), and literal sentences, in either L1–L2 or L2–L1 translation directions, while their translation behavior was recorded using a keystroke logging method. The results revealed longer translation durations for both metaphors and similes relative to literal utterances. Furthermore, we found slower translation times for novel nominal metaphors compared to novel similes and literal sentences, yet only in the L2–L1 translation direction. Such results might indicate that novel meaning translation is more cognitively taxing in the case of novel nominal metaphors, which require a more robust activation of comparison mechanisms, relative to novel similes. Importantly, this effect might be stronger when translating in the direction in which access to semantic representations is potentially more automatic (i.e., L2–L1 translation).

scholarly journals What affects the magnitude of age-related dual-task costs in working memory? The role of stimulus domain and access to semantic representations

2020 ◽  
pp. 174702182097074
Author(s):  
Agnieszka J Jaroslawska ◽  
Stephen Rhodes ◽  
Clément Belletier ◽  
Jason M Doherty ◽  
Nelson Cowan ◽  
...  
Keyword(s):  
Older Adults ◽  
Working Memory ◽  
Dual Task ◽  
Memory Task ◽  
Semantic Representations ◽  
Younger Adults ◽  
Task Effects ◽  
Concurrent Processing ◽  
Age Related

Although there is evidence that the effect of including a concurrent processing demand on the storage of information in working memory is disproportionately larger for older than younger adults, not all studies show this age-related impairment, and the critical factors responsible for any such impairment remain elusive. Here we assess whether domain overlap between storage and processing activities, and access to semantic representations, are important determinants of performance in a sample of younger and older adults ( N = 119). We developed four versions of a processing task by manipulating the type of stimuli involved (either verbal or non-verbal) and the decision that participants had to make about the stimuli presented on the screen. Participants either had to perform a spatial judgement, in deciding whether the verbal or non-verbal item was presented above or below the centre of the screen, or a semantic judgement, in deciding whether the stimulus refers to something living or not living. The memory task was serial-ordered recall of visually presented letters. The study revealed a large increase in age-related memory differences when concurrent processing was required. These differences were smaller when storage and processing activities both used verbal materials. Dual-task effects on processing were also disproportionate for older adults. Age differences in processing performance appeared larger for tasks requiring spatial decisions rather than semantic decisions. We discuss these findings in relation to three competing frameworks of working memory and the extant literature on cognitive ageing.

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