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Neuro-olfactory dynamics: electroencephalographic insights into dysfunction

Year: 2024

Type: article

Abstract: Introduction: Olfaction is linked to cognition. Understanding brain activity during olfactory dysfunction (OD) could improve knowledge about olfaction itself and associated treatments like olfactory training (OT). Objectives: To study how OD affects brain activity in response to scents Methods: In order to produce a prospective study, a sample of OD and healthy controls was recruited. Participants inhaled scents used in OT and Electroencephalography (EEG) was measured. Results: Brain activation differed between groups for 3 of the 4 scents. Rose: lower Alpha 1 activation in OD (p=0.021); Eucalyptus: lower Beta 1 activation (p = 0.037); Clove: lower Gamma 1, Beta 2 and Alpha 2 activation in OD (p <0.05); Higher Delta activity in OD (p = 0.019). No differences found for lemon inhalation. Conclusions: This study explored brain activity during odor perception in OD. Tailoring OT based on scent and individual brain response shows promise. Further research is needed to explore this connection.

Source: Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT)

Authors: Sousa,Francisco Alves de, Costa,Sara, Correia,João Tavares, Azevedo,Sara, Pinto,Ana Nóbrega, Santos,Mariline, Meireles,Luís

Language: English

Topic: Olfactory and Sensory Function Studies

Subfield: Sensory Systems

Field: Neuroscience

Domain: Life Sciences

SDG: Good health and well-being

Open Access status: green

OpenAlex ID: W7002416068

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