TY - JOUR
T1 - Dual route for subtask order control
T2 - Evidence from the psychological refractory paradigm
AU - Luria, Roy
AU - Meiran, Nachshon
N1 - Funding Information:
Email: [email protected] This research was supported by a research grant from the Israeli Science Foundation, given to Nachshon Meiran.
PY - 2006/4
Y1 - 2006/4
N2 - A change in subtask order in the psychological refractory period (PRP) paradigm increases the effect of stimulus onset asynchrony (SOA) on the second response. We used a paradigm with cued, randomly determined subtask order to test the hypothesis that this SOA by order switch overadditivity reflects order control, via "copying" stimulus order. In Experiments 1a and 1b, overadditivity was evident only with insufficient opportunity for cue-based order control. In Experiment 2, overadditivity was decreased by using the same set of stimuli in the two subtasks, presumably by removing the opportunity to rely on stimulus order. In Experiment 3, removing the order cue increased the overadditivity, presumably because control was based solely upon copying stimulus order. The results indicate interactive top-down and bottom-up order control. Implications to theories of the PRP paradigm are discussed.
AB - A change in subtask order in the psychological refractory period (PRP) paradigm increases the effect of stimulus onset asynchrony (SOA) on the second response. We used a paradigm with cued, randomly determined subtask order to test the hypothesis that this SOA by order switch overadditivity reflects order control, via "copying" stimulus order. In Experiments 1a and 1b, overadditivity was evident only with insufficient opportunity for cue-based order control. In Experiment 2, overadditivity was decreased by using the same set of stimuli in the two subtasks, presumably by removing the opportunity to rely on stimulus order. In Experiment 3, removing the order cue increased the overadditivity, presumably because control was based solely upon copying stimulus order. The results indicate interactive top-down and bottom-up order control. Implications to theories of the PRP paradigm are discussed.
UR - http://www.scopus.com/inward/record.url?scp=33645083251&partnerID=8YFLogxK
U2 - 10.1080/02724980543000060
DO - 10.1080/02724980543000060
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C2 - 16707359
AN - SCOPUS:33645083251
SN - 1747-0218
VL - 59
SP - 720
EP - 744
JO - Quarterly Journal of Experimental Psychology
JF - Quarterly Journal of Experimental Psychology
IS - 4
ER -