p469fig12.67 PHONET contains transient and sustained cells that respond to different kinds of sounds, notably the transients of certain consonants and the sustained sounds of certain vowels.  It then uses the transient working memory to gain contol the integration rate of the sustained working memory to which these different detectors input.<BR>||  Phonetic model summary.  (left) Acoustic tokens [consonant, vowel]. (middle) Acoustic detectors [transient (sensitive to rate), Sustained (sensitive to duration)].  (right) Working memory, Spatially stored transient pattern (extent) + gain control-> spatially stored sustained pattern.