Back to Search
Start Over
Backward compatibility effects in younger and older adults
- Source :
- Attention, Perception, & Psychophysics. 78:1337-1350
- Publication Year :
- 2016
- Publisher :
- Springer Science and Business Media LLC, 2016.
-
Abstract
- In many dual-task situations, responses to the second of two tasks are slowed when the time between tasks is short. The response-selection bottleneck model of dual-task performance accounts for this phenomenon by assuming that central processing of the second task is blocked by a bottleneck until central processing of Task 1 is complete. This assumption could be called into question if it could be demonstrated that the response to Task 2 affected the central processing of Task 1, a backward response compatibility effect. Such effects are well-established in younger adults. Backward compatibility effects in older (as well as younger) adults were explored in two experiments. The first experiment found clear backward response compatibility effects for younger adults but no evidence of them for older adults. The second experiment explored backward stimulus compatibility and found similar effects in both younger and older adults. Evidence possibly consistent with some pre-bottleneck processing of Task 2 central stages also was found in the second experiment in both age groups. For younger adults, the results provide further evidence falsifying the claim of an immutable response selection bottleneck. For older adults, the evidence suggested that Task 2 affects Task 1 when there is stimulus compatibility but not when there is response compatibility.
- Subjects :
- Male
Psychological refractory period
Linguistics and Language
Adolescent
Experimental and Cognitive Psychology
Stimulus (physiology)
behavioral disciplines and activities
050105 experimental psychology
Language and Linguistics
Backward compatibility
Bottleneck
Developmental psychology
Young Adult
03 medical and health sciences
0302 clinical medicine
Age groups
Task Performance and Analysis
Humans
0501 psychology and cognitive sciences
Aged
Aged, 80 and over
05 social sciences
Age Factors
Sensory Systems
Refractory Period, Psychological
Younger adults
Female
Psychology
Psychomotor Performance
psychological phenomena and processes
030217 neurology & neurosurgery
Cognitive psychology
Subjects
Details
- ISSN :
- 1943393X and 19433921
- Volume :
- 78
- Database :
- OpenAIRE
- Journal :
- Attention, Perception, & Psychophysics
- Accession number :
- edsair.doi.dedup.....efe514db35c547058ce065bb0783718f