in his 1918 essay on the subject , however , freud tried hard to kick this idea-that intellectual uncertainty is behind the sense of the uncanny-around the block , arguing that the skin-crawling response generated by uncanny triggers can be explained through psychoanalysis and attributed to basic human neuroses ( or , rather , what one might consider to be basic human neuroses if one were , for instance , freud ) like the infantile castration complex and fears and fantasies related to the womb .