Engineers of Sharif University of Technology Make Domestic Olfactometer Device

Tuesday, February 25, 2020 - 12:29

Supported by Iran's Cognitive Sciences and Technologies Council, engineers of Sharif University of Technology have created domestic olfactometer in order to be applied in cognitive studies for measuring patients' sense of smell.

According to an ISCA report, the number of reported research results in human olfaction is limited compared to the studies reported on the auditory and visual systems. Application of olfactory tests in the diagnosis of certain neurodegenerative diseases provides a strong motivation for researchers to explore this field.

Based on the research plan, "nonetheless, presenting olfactory stimuli to subjects in a controlled manner is challenging, and commercial devices for such function are expensive.

In this project, researchers proposed a design for building a low-cost and portable olfactometer, which is controlled by a computer and can be interfaced with brain signal acquisition systems such as EEG and fMRI.

"Psychophysical data were collected to verify that the developed olfactometer can be used together with the mentioned neuroimaging modalities for studying the human olfactory system. The key novelty of this design is its lower production cost compared to similar works targeted for chemosensory event-related potential (CERP) experiments, enabling more research activities in this less attended field.

"In addition, functional near-infrared spectrometry (fNIRS) was also used as a new modality for studying brain functionality during the perception of odor stimuli in an event related potential experiment using the designed olfactometer."

The research plan, which its results presented in IEEE Austria International Biomedical Engineering Conference (AIBEC 2019) At: Vienna, Austria, has been supported on by Iran's Cognitive Sciences and Technologies Council, and carried on by researchers of Sharif University of Technology.

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