What makes consent delicate when a brain interface is tested during an operation the patient needs anyway? · Grey Matter

Much early human data for brain interfaces, including Precision's recordings in dozens of patients and Paradromics's first ten-minute implant, comes from people already undergoing brain surgery for a tumour or for epilepsy.

What makes consent delicate when a brain interface is tested during an operation the patient needs anyway?

Much early human data for brain interfaces, including Precision's recordings in dozens of patients and Paradromics's first ten-minute implant, comes from people already undergoing brain surgery for a tumour or for epilepsy. The research adds time and a device to an operation they need for their own care, and it is agreed while they are facing that operation and depend on the same team for their treatment. Consent has to separate the two clearly, so that refusing the research changes nothing about the treatment, and has to say what will be done with recordings made of their brain.