DRIVING SUPPORT DEVICE, METHOD, STORAGE MEDIUM, AND VEHICLE

A driving support device for a vehicle includes: a calculation unit that calculates a sensitivity index value for avoiding a target that is at risk of collision, based on a driving operation content of a driver of the vehicle; a determination unit that determines a driving support method to be applied to the driver, based on the sensitivity index value calculated by the calculation unit; and an execution unit that executes the driving support method determined by the determination unit.