 A number of factors can undermine guidance control. If a person’s behavior is brought about by hypnosis, brainwashing, or genuinely irresistible urges, then that person may not be morally responsible for her behavior since she does not reflectively guide it in the way required for responsibility (Fischer &amp; Ravizza 1998: 35). More specifically, an agent in the above circumstances is not likely to be responsible because he “is not responsive to reasons—his behavior would be the same, no matter what reasons there were” (1998: 37). Thus, Fischer and Ravizza characterize possession of guidance control as (partially) dependent on responsiveness to reasons. In particular, guidance control depends on whether the psychological mechanism that issues in an agent’s behavior is responsive to reasons. (Guidance control also requires that an agent owns the mechanism on which she acts. According to Fischer and Ravizza, this requires placing historical conditions on responsibility; see  §3.3.3.)