Topological Re-Organisation of the Brain Connectivity during Olfactory Adaptation - An EEG Functional Connectome Study

Nida Itrat Abbasi, Jonathan Harvy, Anastasios Bezerianos, Nitish V. Thakor, Andrei Dragomir

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Perception of olfactory stimuli involves complex brain processing which can be directly associated with cognition and emotion. Neural structures embedded deep within the brain and several cortical entities collaborate for the processing of this unique sensory modality. In this study, we investigate the dynamic changes in the neural responses associated with prolonged and repeated exposure to pleasant odor stimuli. Graph metrics computed from EEG functional connectivity like clustering coefficient (p = 0.0008), characteristic path length (p = 0.014) and local efficiency (p = 0.0005) were seen to undergo statistically significant changes, indicating inhibition in the global and local information processing that can be attributed to olfactory adaptation. Moreover, dominant but diminishing activity was observed in the left cerebral hemisphere, signifying recruitment of various neuronal ensembles associated with complex cognitive processes for perception of pleasant odor stimuli.

Original languageEnglish (US)
Title of host publication9th International IEEE EMBS Conference on Neural Engineering, NER 2019
PublisherIEEE Computer Society
Pages635-638
Number of pages4
ISBN (Electronic)9781538679210
DOIs
StatePublished - May 16 2019
Event9th International IEEE EMBS Conference on Neural Engineering, NER 2019 - San Francisco, United States
Duration: Mar 20 2019Mar 23 2019

Publication series

NameInternational IEEE/EMBS Conference on Neural Engineering, NER
Volume2019-March
ISSN (Print)1948-3546
ISSN (Electronic)1948-3554

Conference

Conference9th International IEEE EMBS Conference on Neural Engineering, NER 2019
CountryUnited States
CitySan Francisco
Period3/20/193/23/19

ASJC Scopus subject areas

  • Artificial Intelligence
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Topological Re-Organisation of the Brain Connectivity during Olfactory Adaptation - An EEG Functional Connectome Study'. Together they form a unique fingerprint.

Cite this