Information Need Awareness : an EEG study
Michalkova, Dominika and Parra Rodriguez, Mario and Moshfeghi, Yashar (2022) Information Need Awareness : an EEG study. In: Special Interest Group on Information Retrieval (SIGIR) 2022, 2022-07-11 - 2022-07-15, Madrid, Spain. (In Press)
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Abstract
A fundamental goal of Information Retrieval (IR) is to satisfy search/- ers’ information need (IN). Advances in neuroimaging technologies have allowed for interdisciplinary research to investigate the brain activity associated with the realisation of IN. While these studies have been informative, they were not able to capture the cognitive processes underlying the realisation of IN and the interplay between them with a high temporal resolution. This paper aims to investigate this research question by inferring the variability of brain activity based on the contrast of a state of IN with the two other (no-IN) scenarios. To do so, we employed Electroencephalography (EEG) and constructed an Event-Related Potentials (ERP) analysis of the brain signals captured while participants experiencing a realisation of IN. In particular, the brain signals of 24 healthy participants were captured while performing a Question-Answering (Q/A) Task. Our results show a link between the early stages of processing, corresponding to awareness and the late activity, meaning memory control mechanisms. Our fndings also show that participants exhibited early N1-P2 complex indexing awareness processes and indicate, thus, that the realisation of IN is manifested in the brain before it reaches the user’s consciousness. This research contributes novel insights into a better understanding of IN and informs the design of IR systems to better satisfy it.
ORCID iDs
Michalkova, Dominika, Parra Rodriguez, Mario
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Item type: Conference or Workshop Item(Paper) ID code: 80185 Dates: DateEvent1 April 2022Published1 April 2022AcceptedKeywords: information need, information retrieval, Anomalous State of Knowledge (ASK), memory errors, d Electroencephalography (EEG), Event-Related Potentials (ERP), Electronic computers. Computer science, Neuroscience. Biological psychiatry. Neuropsychiatry, Library Science. Information Science, Library and Information Sciences, Cognitive Neuroscience, Information Systems Subjects: Science > Mathematics > Electronic computers. Computer science
Medicine > Internal medicine > Neuroscience. Biological psychiatry. Neuropsychiatry
Bibliography. Library Science. Information Resources > Library Science. Information ScienceDepartment: Faculty of Science > Computer and Information Sciences
Faculty of Humanities and Social Sciences (HaSS) > School of Psychological Science and Health > PsychologyDepositing user: Pure Administrator Date deposited: 13 Apr 2022 12:59 Last modified: 19 Apr 2022 09:04 URI: https://strathprints.strath.ac.uk/id/eprint/80185