Matches in SemOpenAlex for { <https://semopenalex.org/work/W2765493548> ?p ?o ?g. }
Showing items 1 to 69 of
69
with 100 items per page.
- W2765493548 abstract "Brain activation is assumed to be constant during the delay period of a delay match to sample task (DMTS). The objective was to examine the dynamic changes in brain activation (using fMRI) during a DMTS in young and older healthy subjects. There were 33 young participants (under 40 years old) and 23 older participants (over 55 years old). The study was approved by the Research Ethics Committee of the Faculty of Health Sciences in Trinity College Dublin. All participants signed informed consent before participating in study. The DMS task had 3 trial types: face-name, face and a control (scrambled images). Trials consisted of an encode phase (2s), a delay (18s) and a probe phase (4s), with a jittered inter-trial interval (6–14s). There were 75 trials (25 face-name pairs, 25 face and 25 control stimuli). The regressors for the analysis included in the first case regressors for the encoding, delay and probe periods but these were expanded to subdivide the delay period into three 6 sec period: initial, middle, and late periods. Statistical significance was set at voxel-wise threshold of p≤0.005. To correct for multiple comparisons, each cluster had a minimum size of 683μl (23 voxels) which was calculated using AlphaSim (AFNI) to get a family wise error corrected statistical significance level of p<0.05. For the young group the statistical parametric map (SPM) of the face vs control are shown in Figure 1 and with the delay period sub-divided into 3 parts in Figure 2. Similarly the face-name DMTS results are shown in Figure 3 and Figure 4 (split delay periods). In Figure 5, face vs control activation patterns seen in the older healthy groups (split delay) are seen, and Figure 6 contain the results from the face-name vs control task. The statistical maps show that during the delay period with either face or face-name stimuli, the activation pattern varied among the 3 different periods in both young and older cohorts." @default.
- W2765493548 created "2017-11-10" @default.
- W2765493548 creator A5056594157 @default.
- W2765493548 creator A5078823846 @default.
- W2765493548 creator A5084463761 @default.
- W2765493548 date "2017-07-01" @default.
- W2765493548 modified "2023-09-27" @default.
- W2765493548 title "[P4-292]: BRAIN ACTIVATION CHANGES DURING THE DELAY PERIOD IN A WORKING MEMORY TASK: NORMAL AGING-RELATED EFFECTS" @default.
- W2765493548 doi "https://doi.org/10.1016/j.jalz.2017.06.2161" @default.
- W2765493548 hasPublicationYear "2017" @default.
- W2765493548 type Work @default.
- W2765493548 sameAs 2765493548 @default.
- W2765493548 citedByCount "0" @default.
- W2765493548 crossrefType "journal-article" @default.
- W2765493548 hasAuthorship W2765493548A5056594157 @default.
- W2765493548 hasAuthorship W2765493548A5078823846 @default.
- W2765493548 hasAuthorship W2765493548A5084463761 @default.
- W2765493548 hasBestOaLocation W27654935481 @default.
- W2765493548 hasConcept C121332964 @default.
- W2765493548 hasConcept C126322002 @default.
- W2765493548 hasConcept C126838900 @default.
- W2765493548 hasConcept C15744967 @default.
- W2765493548 hasConcept C162324750 @default.
- W2765493548 hasConcept C177264268 @default.
- W2765493548 hasConcept C187736073 @default.
- W2765493548 hasConcept C199360897 @default.
- W2765493548 hasConcept C24890656 @default.
- W2765493548 hasConcept C2780451532 @default.
- W2765493548 hasConcept C2781291010 @default.
- W2765493548 hasConcept C41008148 @default.
- W2765493548 hasConcept C54170458 @default.
- W2765493548 hasConcept C548259974 @default.
- W2765493548 hasConcept C65409693 @default.
- W2765493548 hasConcept C71924100 @default.
- W2765493548 hasConceptScore W2765493548C121332964 @default.
- W2765493548 hasConceptScore W2765493548C126322002 @default.
- W2765493548 hasConceptScore W2765493548C126838900 @default.
- W2765493548 hasConceptScore W2765493548C15744967 @default.
- W2765493548 hasConceptScore W2765493548C162324750 @default.
- W2765493548 hasConceptScore W2765493548C177264268 @default.
- W2765493548 hasConceptScore W2765493548C187736073 @default.
- W2765493548 hasConceptScore W2765493548C199360897 @default.
- W2765493548 hasConceptScore W2765493548C24890656 @default.
- W2765493548 hasConceptScore W2765493548C2780451532 @default.
- W2765493548 hasConceptScore W2765493548C2781291010 @default.
- W2765493548 hasConceptScore W2765493548C41008148 @default.
- W2765493548 hasConceptScore W2765493548C54170458 @default.
- W2765493548 hasConceptScore W2765493548C548259974 @default.
- W2765493548 hasConceptScore W2765493548C65409693 @default.
- W2765493548 hasConceptScore W2765493548C71924100 @default.
- W2765493548 hasIssue "7S_Part_29" @default.
- W2765493548 hasLocation W27654935481 @default.
- W2765493548 hasOpenAccess W2765493548 @default.
- W2765493548 hasPrimaryLocation W27654935481 @default.
- W2765493548 hasRelatedWork W2333539729 @default.
- W2765493548 hasRelatedWork W2362598209 @default.
- W2765493548 hasRelatedWork W2372362454 @default.
- W2765493548 hasRelatedWork W2380527666 @default.
- W2765493548 hasRelatedWork W2725851296 @default.
- W2765493548 hasRelatedWork W2727442597 @default.
- W2765493548 hasRelatedWork W2748952813 @default.
- W2765493548 hasRelatedWork W2899084033 @default.
- W2765493548 hasRelatedWork W4225756839 @default.
- W2765493548 hasRelatedWork W4386392971 @default.
- W2765493548 hasVolume "13" @default.
- W2765493548 isParatext "false" @default.
- W2765493548 isRetracted "false" @default.
- W2765493548 magId "2765493548" @default.
- W2765493548 workType "article" @default.