Oxyhemoglobin changes in the prefrontal cortex in response to cognitive tasks: a systematic review.
Leandro Viçosa BonettiSyed Ahmed HassanSin-Tung LauLuana T MeloTakako TanakaKara K PattersonW Darlene ReidPublished in: The International journal of neuroscience (2018)
although, the data comparison was challenging provided the heterogeneity in methodology, the results across studies were similar.