limited amount of resources available to conduct tasks (Kahneman, 1973).Theoretical Interpretations of Divided Attention Trying to attend to two stimuli at once and making multiple responses rather than making one response to multiple stimuli (interference) Treisman & Geffen (1967) tests between attenuation and late selection - guess who wins?!ĭichotic listening + detect target words in either channel (tap upon detection)ĭetection much worse in unattended channel, supporting attenuation.if late selection, detection should be no problem since all info is getting throughĭivided Attention and Dual Task Performanceĭifficult to attend to more that thing at the same time
Dichotic listening task vs shadowing full#
Treisman (1964) proposed that physical characteristics are used to select one message for full processing and other messages are given partial processingĭeutsch & Deutsch (1963) proposed that all messages get through, but that only one response can be made (late selection) What gets through? what is selected and when?īroadbent (1958) proposed that physical characteristics of messages are used to select one message for further processing and all others are lost Theoretical Interpretations of Selective Attentionīottleneck theories or filter theories (Broadbent, 1958)īottleneck is a mechanism that limits the amount of information to be attended to reading a book for class and watching Melrose Place Practically, don't think you can do more that one at a time without one or both tasks suffering (e.g. Theoretically, difficult to attend to two things at once can tell us what can draw attention.such as hearing your name in the unattended ear but when your attention gets drawn to the unattended ear, you lose information from tha attended ear ( cocktail party phenomenon.) Very little about the unattended message is processed:Ĭan tell whether it was a human voice or a noiseĬan tell whether the voice was male or femaleĬannot report any of the words spoken, even if the same word was repeated over and over again repeat back the words from one message only) most Ss can do this in a typical dichotic listening task, Ss hear two messages simultaneously.one message in one ear and one message in the other Īs they are listening, they are asked to 'shadow' one of the messages (i.e. name colors of colored wordsĭichotic listening (Cherry, 1953 Moray, 1959) variations on the Stroop task (lab activity).automatic process of reading interferes with our ability to selectively attend to ink color.
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