• Title/Summary/Keyword: 기억도

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Integrated Object Representations in Visual Working Memory Examined by Change Detection and Recall Task Performance (변화탐지와 회상 과제에 기초한 시각작업기억의 통합적 객체 표상 검증)

  • Inae Lee;Joo-Seok Hyun
    • Korean Journal of Cognitive Science
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    • v.35 no.1
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    • pp.1-21
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    • 2024

  • This study investigates the characteristics of visual working memory (VWM) representations by examining two theoretical models: the integrated-object and the parallel-independent feature storage models. Experiment I involved a change detection task where participants memorized arrays of either orientation bars, colored squares, or both. In the one-feature condition, the memory array consisted of one feature (either orientations or colors), whereas the two-feature condition included both. We found no differences in change detection performance between the conditions, favoring the integrated object model over the parallel-independent feature storage model. Experiment II employed a recall task with memory arrays of isosceles triangles' orientations, colored squares, or both, and one-feature and two-feature conditions were compared for their recall performance. We found again no clear difference in recall accuracy between the conditions, but the results of analyses for memory precision and guessing responses indicated the weak object model over the strong object model. For ongoing debates surrounding VWM's representational characteristics, these findings highlight the dominance of the integrated object model over the parallel independent feature storage model.

  • https://doi.org/10.19066/cogsci.2024.35.1.001 인용 PDF

Improvement of Attention and Memory of Stroke Patient Using Smart Phone Applications : Single Case Study (스마트폰 어플리케이션을 이용한 뇌졸중 환자의 집중력과 기억력 증진: 단일 사례연구)

  • Lee, In-Seon
    • Therapeutic Science for Rehabilitation
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    • v.3 no.1
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    • pp.57-65
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    • 2014

  • Objective : In this study, to investigate the effect of Attention and Memory using a smart phone application intervention for stroke patients. Methods : single-subject experimental research was conducted using an ABA design. During the study, subject was applied to a total of 20 sessions with five times baseline, ten times intervention line, five times re-baseline. baseline and re-baseline did not have a separate intervention. During the intervetion line was trained by the application 'Master of memory(Numbers, Shapes, Fruits mode)' and 'Matching cute animals'. All sessions were evaluated an Attention and Memory using by 'Master of memory(Random mode)' and 'Memory free(Picture memory)' application. The resulting data was presented in graphs and descriptive statistics. Results : Implemented in all session, Attention and Memory assessment results showed the improvement of Attention and Memory in intervention line. Assessments conducted before and after the intervention, showed the improvement of Attention and Memory after the evaluation of interventions respectively. Conclusion : The results of this study are expected to be clinically useful. Follow-up studies on smart phone application intervention are needed for more targeted sampling study and conducted over a long period of time.

  • https://doi.org/10.22683/tsnr.2014.3.1.057 인용 PDF

Analysis of the Mental Images in Episodic Memory with Comparison between the patients with Dementia of Alzheimer Type and Healthy Elderly People (알츠하이머성 치매환자와 건강한 노인의 일화기억 이미지 비교 분석)

  • Han, Kyung-Hun;Ernst, Poppel
    • Korean Journal of Cognitive Science
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    • v.20 no.1
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    • pp.79-107
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    • 2009

  • Episodic memory, i.e. memorization of information within a spatiotemporal environment, is affected Alzheimer's disease(AD), but its impairment may also be occurred in the normal aging process. The purpose of this study is to analyze and evaluate memory in with Dementia of Alzheimer Type by examining their cognitive skills in episodic memory using the technique. This new method involves assessing the mental images the subject's own past in the mind like projected and movies. Three patients in the early stage of Dementia of Alzheimer Type, one with mild depression, and 2 healthy controls for comparison were asked to retrieve their episodic memory of the previous day, week, month, and a day testing day. The answers were then analyzed with regards to their specific features as emotional state, color, and time order. In the following day, the subjects were tasked to recall again the images they reproduced in the day's test order to observe of memory. Results showed that all 3 patients failed to arrange the retrieved images in time order and their images of the previous day were unclear in color and were stationary like photographs, even when they reproduced the mental images at much quantity as controls. patients could not remember particular events of yesterday, and only recalled the general occurrences of every day life. These results suggest that in the early stage of Dementia of Alzheimer Type, difficulties in the retrieval of recent episodic memory begin to primarily occur, and qualitative impairment happens earlier than quantitative.

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