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Using Fiberless, Wearable fNIRS to Monitor Brain Activity in Real-world Cognitive Tasks

Using Fiberless, Wearable fNIRS to Monitor Brain Activity in Real-world Cognitive Tasks

Published on: December 2, 2015

Prefrontal cortex dysfunction during cognitive tests evidenced by functional near-infrared spectroscopy.

Valentina Quaresima¹, Patricia Giosuè, Rita Roncone

¹DeparDepartment of Health Sciences, University of L'Aquila, Via Vetoio (Loc. Coppito), 67100 L'Aquila, Italy. vale@univaq.it

Psychiatry Research

|February 24, 2009

Summary

Functional near-infrared spectroscopy (fNIRS) revealed varied prefrontal cortex oxygenation responses in schizophrenia patients during cognitive tasks. Individual patient data is crucial for understanding these brain activity patterns.

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Area of Science:

Neuroscience
Cognitive Psychology
Psychiatric Research

Background:

Schizophrenia is associated with cognitive deficits.
Prefrontal cortex (PFC) function is often impaired in schizophrenia.
Neuroimaging techniques can assess brain activity and oxygenation.

Purpose of the Study:

To investigate prefrontal cortex oxygenation changes during cognitive tasks in schizophrenia patients.
To compare responses to a verbal fluency task and a visual spatial working memory task.

Main Methods:

Utilized functional near-infrared spectroscopy (fNIRS) to measure cerebral oxygenation.
Assessed nine patients diagnosed with schizophrenia.
Administered a verbal fluency task and a visual spatial working memory task.

Main Results:

Four out of nine patients showed oxygenation responses to both cognitive tasks.
Five patients exhibited responses to only one of the two tasks.
Demonstrated heterogeneity in prefrontal cortex reactivity among individuals with schizophrenia.

Conclusions:

Prefrontal cortex oxygenation responses to cognitive tasks are variable in schizophrenia.
Individualized reporting of fNIRS data is essential for accurate interpretation in schizophrenia research.
Highlights the need for personalized approaches in understanding brain function in psychiatric disorders.