What is the N170 event related potential?

The N170 wave is an event-related brain potential (ERP) measured using electroencephalography (EEG). The N170 is a negative waveform that peaks at approximately 170 msec after stimulus presentation. It is observed at occipitotemporal sites and with greater amplitude over the right hemisphere. The N170 ERP is observed in response to a variety of facial stimuli, so it may reflect a neural mechanism for detection of human faces.

What is the evidence for N170 event related potential?

High quality evidence shows people with schizophrenia have a medium-sized reduction in N170 amplitude in response to face stimuli when compared to controls’ response. There were no differences in effect size according to different face stimuli (e.g. emotional vs. non-emotional or no judgment).

October 2020

Last updated at: 4:27 am, 29th October 2020
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