Where can P31 responses to PTN stimulation be recorded?

P31 responses, which are associated with responses to peripheral nerve stimulation, are often recorded from a generalized region of the scalp, rather than being restricted to specific localized areas of the brain such as the frontal, temporal, or occipital lobes. This reflects the way these potentials can be more broadly distributed across the scalp as they reflect the overall cortical activity rather than isolated brain regions.

Recording from a generalized scalp region allows for the capture of electrical activity that represents the summation of neural responses from various areas of the brain that are involved in processing sensory information. This can aid in understanding the overall cortical processing of stimuli, which is integral to the analysis conducted during intraoperative monitoring.

In contrast, choosing specific lobes may limit the ability to capture the full spectrum of cortical activity connected to peripheral nerve stimulation, which is why the generalized region option is the most appropriate choice.