2026-09-19T11:28:36.671228Zhttps://opus.uleth.ca/server/oai/requestoai:opus.uleth.ca:10133/47562017-01-27T15:02:26Zcom_10133_3346com_10133_1com_10133_296col_10133_3347col_10133_298
ULethbridge OPUS Repository
supervisor
Luczak, Artur
supervisor
Gruber, Aaron J.
author
Jalali, Afrooz
author
University of Lethbridge. Faculty of Arts and Science
2017-01-10T18:13:35Z
2017-01-10T18:13:35Z
2016
https://hdl.handle.net/10133/4756
Oscillatory 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
EEG
memory encoding
low frequency oscillation phase
Memory--Research
Memory--Physiological aspects
Theta rhythm
Electroencephalography
Hippocampus (Brain)
Neocortex
Oscillations
The Effect of low frequency oscillation phase on memory encoding
Thesis
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application/pdf
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