 We can now see, in the analytic tradition, the emergence of themes similar to the “detachability” and “basic forms” themes identified in the connection with the phenomenological movement. Later we will discuss these parallels. For now, to round out the present historical sketch so as to inform such comparisons, we may note some of the factors seemingly important to the course discussion took in analytic philosophy. Though its approach to intentionality is historically rooted in Fregean and Russellian treatments of logic and language, developments during the twentieth century sketched above—various forms of externalism, along with opposition to allegedly over-intellectualized views of perceptual intentionality—came in conflict with this heritage to some extent. Among the sources of this shift, one might plausibly find: a disenchantment with early twentieth century conceptions of philosophy’s distinctive role (of, e.g., providing conceptual analyses, and solutions to logico-linguistic puzzles); aligned with this, an increasingly perceived need to support claims in philosophy with experimental science, especially as systematic, academic psychology grew more sophisticated and successful; and finally—relatedly—the belief that defending a scientific worldview requires defending an ontology typically described as “physicalist” against objections deemed to have unacceptably dualist implications. Such factors (and others) helped encourage philosophers in the analytic tradition to tie consciousness more closely to intentionality in ways that raised issues similar to those canvassed above in connection with phenomenology—though often from rather different motives.