By Schubert Ogden
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Significantly, he can speak of an actual entity as "prehensive or sentient." He can also refer to "mind (in the general sense of at least sentient or affective experience)" (PCH: 699; cf. also 642: "What Whitehead calls 'mentality' is, in minimal cases, only a feeling, however rudimentary and unconceptual, of futurity or real possibility. All subjects in some way and degree have a feeling of past and future.")
It is also significant, I think, that Hartshorne holds that to be "unprehensive" is to be "totally without feeling others' feeling." Note his distinction between "causally creative experience" and "prehensive experience" (PCH: 731).