The influence of working memory load on expectancy-based strategic processes in the Stroop priming task
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Ortells Rodríguez, Juan José; Álvarez Cazorla, Dolores; Noguera Cuenca, María Del Carmen; Carmona Samper, María Encarnación; de Fockert, Jan WillemDate
2017Abstract
The present study investigated whether a differential availability of cognitive control resources as a result of varying working memory (WM) load could affect the capacity for expectancy-based strategic actions. Participants performed a Stroop-priming task in which a prime word (GREEN or RED) was followed by a colored target (red vs. green) that participants had to identify. The prime was incongruent or congruent with the target color on 80 and 20% of the trials, respectively, and participants were informed about the differential proportion of congruent vs. incongruent trials. This task was interleaved with a WM task, such that the prime word was preceded by a sequence of either a same digit repeated five times (low load) or five different random digits (high load), which should be retained by participants. After two, three, or four Stroop trials, they had to decide whether or not a probe digit was a part of the memory set. The key finding was a significant interaction between prime-ta...
Palabra/s clave
Psicología
working memory load
cognitive control resources
Stroop interference
Stroop priming effects
expectancy-based strategic processes