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Exploring the Relationship between Long-Term Memory and Attention through Attentional Templates

2016· dissertation· en· W2724922947 on OpenAlexfundno aff
Rebecca Goldstein

Bibliographic record

Venuenot available
Typedissertation
Languageen
FieldNeuroscience
TopicNeural and Behavioral Psychology Studies
Canadian institutionsnot available
FundersMcGill University
KeywordsWorking memoryTemplateSelective attentionPsychologyCognitive psychologyTerm (time)Computer scienceNeuroscienceCognitionPhysics

Abstract

fetched live from OpenAlex

It is assumed that the contents of visual working memory (VWM) guide attention. This notion has been challenged by work which has demonstrated that multiple searches for the same target changes contralateral delay activity (CDA), an event-related potential that is the putative marker of the amount of information maintained in VWM. It has been suggested that the disappearance of the CDA with an invariable target marks the transfer of the attentional template from VWM storage to long-term memory (LTM) storage. Therefore, LTM may guide attention in many situations where it has previously been assumed that VWM guides attention. However, while the transfer of attentional template from VWM to LTM is demonstrated through a decrease in the amplitude of the CDA, this shift has not been accompanied by a corresponding behavioral change in response times. The purpose of the present study was to test the hypothesis that a LTM template leads to faster performance than a VWM template (the LTM template hypothesis). Two experiments were conducted to explore this hypothesis. In Experiment 1, the LTM template hypothesis was examined by comparing performance between two different groups of subjects: the first group searched for a target that changed on every trial (variable) while the second group searched for a target that was invariable across trials. In Experiment 2, one group of subjects searched for both the variable and invariable targets. The results showed that a LTM template (invariable target search) leads to faster performance than a VWM template (variable target search). Roughly six times as many trials were required for an effect on performance compared to the number of trials required for an effect in CDA amplitude. Eye tracking results suggest the change in performance is due to more efficient search initiation and target verification.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.005
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.001
Threshold uncertainty score0.005

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.005
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0010.001
Open science0.0000.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0010.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.520
GPT teacher head0.431
Teacher spread0.089 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2016
Admission routes1
Has abstractyes

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