In Phase 1 of the project epilepsy patients and their family will be interviewed about their personal experiences with the condition, EEG registrations, daily life, ... . In addition EEG-technologists and neurologists will be interviewed about their experience with EEG registrations and what features their dream EEG-cap would have. The purpose is to gain insight in the wishes and expectations of the end users so we can take this into account when designing of the EEG-cap. This interview is anticipated to take approximately 1 hour.