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Efficiency of attentional allocation examined with lateralized EEG power spectra

Kroes, S. (2015) Efficiency of attentional allocation examined with lateralized EEG power spectra.

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Abstract:Lateralized power spectra (LPS), introduced by Van der Lubbe & Utzerath (2013), are a new measure for the lateralization of oscillatory activity in the brain. In the Posner cueing paradigm, EEG measurements can be used to evaluate the influence of cue validity on attentional allocation, as well as the induced or evoked nature of endogenous attentional allocation. This thesis examines the potential of this new measure to detect differences in attentional allocation manifested as lateralized α-band power fluctuations in an endogenous Posner cueing task. An effect of cue validity on behavioral measure and LPS values was found over parietal and occipital cortical areas. Fully predictive cues caused a larger attentional shift and higher LPS values than cues with a low validity. This effect could not be found when LPS values were derived from ERPs, indicating an induced rather than evoked nature of this phenomenon.
Item Type:Essay (Bachelor)
Faculty:BMS: Behavioural, Management and Social Sciences
Subject:77 psychology
Programme:Psychology BSc (56604)
Link to this item:https://purl.utwente.nl/essays/68471
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