Back to Search
Start Over
Backward Response-Level Crosstalk in the Psychological Refractory Period Paradigm
- Source :
-
Journal of Experimental Psychology: Human Perception and Performance . Feb 2006 32(1):149-165. - Publication Year :
- 2006
-
Abstract
- Bottleneck models of psychological refractory period (PRP) tasks suggest that a Task 1 response should be unaffected by the Task 2 response in the same trial, because selection of the former finishes before selection of the latter begins. Contrary to this conception, the authors found backward response-level crosstalk effects in which Task 2 response force requirements influenced the force-time dynamics of Task 1 responses. Specifically, Task 2 required a hard or soft keypress response. Task 1 responses were harder when the upcoming Task 2 response was to press hard rather than soft, suggesting some activation of Task 2 response parameters before Task 1 processing reached the final ballistic motor output stage. A 3rd experiment using a flankers paradigm showed that this effect did not arise from automatic activation of responses by the stimuli associated with hard and soft responses. This backward response-level crosstalk extends previous findings of backward crosstalk in the PRP paradigm by showing that crosstalk can affect motor output as well as response time and can arise even when the 2 tasks being performed are not semantically related.
Details
- Language :
- English
- ISSN :
- 0096-1523
- Volume :
- 32
- Issue :
- 1
- Database :
- ERIC
- Journal :
- Journal of Experimental Psychology: Human Perception and Performance
- Publication Type :
- Academic Journal
- Accession number :
- EJ735419
- Document Type :
- Journal Articles<br />Reports - Research