PSYC 221 Chapter Notes - Chapter 4: Cognitive Load, Donald Broadbent, Anne Treisman

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William james suggested that selective attention only highlights whatever is being attended. We (cid:272)a(cid:374) also per(cid:272)ei(cid:448)e (cid:449)hat is(cid:374)"t (cid:271)ei(cid:374)g atte(cid:374)ded to. This idea was correct, but needed to be tweaked a little bit. Idea of a (cid:862)filter(cid:863) that a(cid:272)ts o(cid:374) i(cid:374)(cid:272)o(cid:373)i(cid:374)g i(cid:374)for(cid:373)atio(cid:374), keepi(cid:374)g so(cid:373)e out a(cid:374)d letti(cid:374)g other info in for further processing. When asked what was said in the unattended ear, could only identify that there was a message and the gender of the person speaking. Sensory memory all of incoming information for a fraction of a second. Filter identifies physical characteristics of attended message, like gender, tone: only allows this in, while other info is filtered out. Detector processes high level info, like meaning; this processes all of the info that comes into it because only important info has been let in. Short-term memory receives output from detector, only holding for 10-15 seconds; transfers to ltm to be held indefinitely.

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