Correctness and response time distributions in the MemTrax continuous recognition task: Analysis of strategies and a reverse-exponential model.
A critical issue in addressing medical conditions is measurement. Memory measurement is difficult, especially episodic memory, which is disrupted by many conditions. On-line computer testing can precisely measure and assess several memory functions. This study analyzed memory performances from a lar...
| Publicado en: | Frontiers in Aging Neuroscience Vol. 14; pp. 1 - 25 |
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| Autores principales: | , , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Frontiers Media S.A.
11/9/2022
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=160467072&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 160467072 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 16634365 BG2U jtl: Frontiers in Aging Neuroscience issn: 16634365 maglogo: N pubinfo: dt: 11/9/2022 vid: 14 pid: 40038 pub: Frontiers Media S.A. artinfo: ui: 160467072 160467072 160467072 10.3389/fnagi.2022.1005298 160467072 ppf: 1 ppct: 24 formats: tig: atl: Correctness and response time distributions in the MemTrax continuous recognition task: Analysis of strategies and a reverse-exponential model. aug: au: Ashford, J. Wesson Clifford, James O. Anand, Sulekha Bergeron, Michael F. Ashford, Curtis B. Bayley, Peter J. affil: War Related Illness and Injury Study Center, VA Palo Alto Health Care System, Palo Alto, CA, United States sug: subj: Recognition (Psychology) Reaction Time Task Performance and Analysis Human Episodic Memory Psychological Tests Models, Psychological Descriptive Statistics Visual Perception Sensory Stimulation Brain Physiology ab: A critical issue in addressing medical conditions is measurement. Memory measurement is difficult, especially episodic memory, which is disrupted by many conditions. On-line computer testing can precisely measure and assess several memory functions. This study analyzed memory performances from a large group of anonymous, on-line participants using a continuous recognition task (CRT) implemented at https://memtrax.com. These analyses estimated ranges of acceptable performance and average response time (RT). For 344,165 presumed unique individuals completing the CRT a total of 602,272 times, data were stored on a server, including each correct response (HIT), Correct Rejection, and RT to the thousandth of a second. Responses were analyzed, distributions and relationships of these parameters were ascertained, and mean RTs were determined for each participant across the population. From 322,996 valid first tests, analysis of correctness showed that 63% of these tests achieved at least 45 correct (90%), 92% scored at or above 40 correct (80%), and 3% scored 35 correct (70%) or less. The distribution of RTs was skewed with 1% faster than 0.62 s, a median at 0.890 s, and 1% slower than 1.57 s. The RT distribution was best explained by a novel model, the reverse-exponential (RevEx) function. Increased RT speed was most closely associated with increased HIT accuracy. The MemTrax on-line memory test readily provides valid and reliable metrics for assessing individual episodic memory function that could have practical clinical utility for precise assessment of memory dysfunction in many conditions, including improvement or deterioration over time. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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