The Effect of low frequency oscillation phase on memory encoding

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dc.contributor.authorJalali, Afrooz
dc.contributor.authorUniversity of Lethbridge. Faculty of Arts and Science
dc.contributor.supervisorLuczak, Artur
dc.contributor.supervisorGruber, Aaron J.
dc.date.accessioned2017-01-10T18:13:35Z
dc.date.available2017-01-10T18:13:35Z
dc.date.issued2016
dc.degree.levelMastersen_US
dc.description.abstractOscillatory activity is a ubiquitous property of brain signals. The importance of the phase of EEG for processing naturalistic stimuli, which have typically long duration, is still not clear. In this study, we presented word-nonword pairs, each of which was visible for five seconds and measured the effect of EEG phase during stimulus onset on later memory recall. The task consisted of an encoding phase in which 20 word-nonword pairs were presented, followed by a testing phase in which subjects where shown one of the seen words with four target nonwords to choose from. We found that memory recall performance was higher when the words during encoding were presented at a descending phase of the theta oscillation. This effect was the strongest over the frontal cortex. These results suggest that the phase of ongoing cortical activity can affect memorization of persistent stimuli which are an integral part of daily tasks.en_US
dc.embargoNoen_US
dc.identifier.urihttps://hdl.handle.net/10133/4756
dc.language.isoen_USen_US
dc.proquestyesNoen_US
dc.publisherLethbridge, Alta : University of Lethbridge, Dept. of Neuroscienceen_US
dc.publisher.departmentDepartment of Neuroscienceen_US
dc.publisher.facultyArts and Scienceen_US
dc.relation.ispartofseriesThesis (University of Lethbridge. Faculty of Arts and Science)en_US
dc.subjectEEGen_US
dc.subjectmemory encodingen_US
dc.subjectlow frequency oscillation phaseen_US
dc.subjectMemory--Researchen_US
dc.subjectMemory--Physiological aspectsen_US
dc.subjectTheta rhythmen_US
dc.subjectElectroencephalographyen_US
dc.subjectHippocampus (Brain)en_US
dc.subjectNeocortexen_US
dc.subjectOscillationsen_US
dc.titleThe Effect of low frequency oscillation phase on memory encodingen_US
dc.typeThesisen_US
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