In some examples, a technique may include outputting information associated with a notification. The notification may be associated with a notification attribute. The technique may further include determining, by a computing device, that a user has perceived the information associated with the notification; and receiving, by the computing device, an indication of at least one physiological parameter representative of a reaction of the user to the information associated with the notification. In some examples, the technique also includes, responsive to receiving the indication of the at least one physiological parameter representative of the reaction of the user to the information associated with the notification, controlling, by the computing device, at least one notification configuration setting related to outputting information associated with other notifications associated with the notification attribute.