Sensor

Definition: In the context of fNIRS, a sensor typically refers to a device, such as an avalanche photodiode or photomultiplier tube, that detects the near-infrared light that has passed through or reflected from the measured tissue. Some fNIRS systems additionally incorporate other physiological sensors, such as electroencephalography (EEG) or electrocardiography (ECG), and motion sensors like accelerometers or gyroscopes. These sensors capture other physiological signals that may be relevant to the study, providing complementary information to fNIRS measurements. By offering a more comprehensive understanding of brain activity and associated physiological responses, these sensors can contribute to improving accuracy and interpretation of the results. Definition: In the context of fNIRS, a sensor typically refers to a device, such as an avalanche photodiode or photomultiplier tube, that detects the near-infrared light that has passed through or reflected from the measured tissue. Some fNIRS systems additionally incorporate other physiological sensors, such as electroencephalography (EEG) or electrocardiography (ECG), and motion sensors like accelerometers or gyroscopes. These sensors capture other physiological signals that may be relevant to the study, providing complementary information to fNIRS measurements. By offering a more comprehensive understanding of brain activity and associated physiological responses, these sensors can contribute to improving accuracy and interpretation of the results.

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References: National Cancer Institute. National Cancer Institute Thesaurus, 2017. Documentation page available on http://nciterms.nci.nih.gov.

Related terms: Optode, Detector, Motion Sensor