note  motif is a cue from _Psycho (1960)_ (qv). As a friend and colleague  of Bernard Herrmann (I) (qv), who wrote the music for  _Psycho (1960)_ (qv), John Williams (I) (qv) included this  particular cue as an homage to Bernard Herrmann (I) (qv). SOURCE:  The Making of Psycho documentary which can be found in the Bonus  Materials section on the Psycho (1960) Collectors Edition DVD.  The 1:16 mark of the documentary reveals this information.