Bender had been skilled in depth psychology and oriented himself mostly by approaches of Pierre Janet and Carl Gustav Jung. From this, it follows that on the one hand, he used mostly a qualitative approach instead of a quantitative one. On the other hand, he held an "animistic" approach in parapsychology instead of a "spiritualistic" one. In parapsychology this means that paranormal phenomena were not treated as influences of spirits, but as a result of the great strain of the "focus person". Because of this approach concerning parapsychological phenomena, he associated the experiments of a sensitive approach with the analysis of an affective approach to parapsychology and neurotic faulty attitudes.