VTechWorks staff will be away for the Thanksgiving holiday beginning at noon on Wednesday, November 27, through Friday, November 29. We will resume normal operations on Monday, December 2. Thank you for your patience.
 

Neural correlates of temporal context retrieval

Simple item page
dc.contributor.authorWang, Fangen
dc.contributor.committeechairDiana, Rachel A.en
dc.contributor.committeememberBell, Martha Annen
dc.contributor.committeememberCate, Anthonyen
dc.contributor.departmentPsychologyen
dc.date.accessioned2017-06-13T19:43:55Zen
dc.date.adate2014-05-19en
dc.date.available2017-06-13T19:43:55Zen
dc.date.issued2014-05-07en
dc.date.rdate2014-05-19en
dc.date.sdate2014-05-09en
dc.description.abstractTemporal context memory is memory for the timing of events. People can make temporal judgments based on strategies such as assessing the relative familiarity of events or inferring temporal order from the semantic associations among events. The purpose of present study is to investigate the brain regions that support temporal context retrieval in the absence of such non-temporal strategies (i.e. pure temporal context memory). We used three word familiar phrases (triplets) as stimuli. In study phase, three words were presented quickly one after another in either familiar or scrambled order. Participants were instructed to read aloud each word and try to remember the order of the words. Then they were tested on their memory for the order of the words in each triplet. We propose that memory for the scrambled triplets reflects primarily temporal retrieval for two reasons. First, participants were prevented from using semantic strategies during encoding. Second, the relative familiarity of the words in each triplet was similar and not diagnostic of the order of the words during encoding. Neuroimaging results indicate that temporal context retrieval, memory for the order of words in scrambled triplets, was associated with the hippocampus, parahippocampal cortex, ventromedial prefrontal cortex, retrosplenial cortex, and posterior cingulate, which are consistent with the retrieval of non-temporal context in episodic memory. The results also suggest that temporal context retrieval could rely on familiarity, which was demonstrated by the higher accuracy and greater activation of PRc in familiar phrases and scrambled triplets presented in studied order in the test phase.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-05092014-102106en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-05092014-102106/en
dc.identifier.urihttp://hdl.handle.net/10919/78100en
dc.language.isoen_USen
dc.publisherVirginia Techen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjecttemporal context memoryen
dc.subjectfrontal cortexen
dc.subjectmedial temporal lobeen
dc.titleNeural correlates of temporal context retrievalen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplinePsychologyen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
etd-05092014-102106_Wang_F_T_2014.pdf
Size:
1.42 MB
Format:
Adobe Portable Document Format
Download

Collections

Masters Theses