- Lavie (1995) found evidence for both early and late selection, and said that we have a limited attentional capacity, so attention must be split between tasks and distractions.
- High cognitive load tasks require all cognitive resources to be allocated to a difficult task and this results in early processing and selection (Filter Theory)
- Low cognitive load tasks. In these tasks, remaining cognitive resources are automatically allocated to irrelevant stimuli. This involves late processing and selection, and therefore distractors are attended more than in the high load tasks.
Showing posts with label late selection theory. Show all posts
Showing posts with label late selection theory. Show all posts
Friday, 4 February 2011
Lavie (1995)
Lavie (1995) stated that perceptual load is a necessary condition for selective attention.
Theories of focused auditory attention
- Filter theory: this is when distracting information is filtered out at an early stage and only attended information is furtherly processed
- Attenuation theory: unattended information is not filtered out, it is just attenuated and the strength turned down
- Late selection theory: information is not filtered, instead it is processed at a late stage via the evaluation of current importance
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