Trial-by-trial adjustments in control triggered by incidentally encoded semantic cues
- Author(s): Blais, C
- Harris, MB
- Sinanian, MH
- Bunge, SA
- et al.
Published Web Locationhttps://doi.org/10.1080/17470218.2014.1000346
© 2015 The Experimental Psychology Society. Cognitive control mechanisms provide the flexibility to rapidly adapt to contextual demands. These contexts can be defined by top-down goals—but also by bottom-up perceptual factors, such as the location at which a visual stimulus appears. There are now several experiments reporting contextual control effects. Such experiments establish that contexts defined by low-level perceptual cues such as the location of a visual stimulus can lead to context-specific control, suggesting a relatively early focus for cognitive control. The current set of experiments involved a word-word interference task designed to assess whether a high-level cue, the semantic category to which a word belongs, can also facilitate contextual control. Indeed, participants exhibit a larger Flanker effect to items pertaining to a semantic category in which 75% of stimuli are incongruent than in response to items pertaining to a category in which 25% of stimuli are incongruent. Thus, both low-level and high-level stimulus features can affect the bottomup engagement of cognitive control. The implications for current models of cognitive control are discussed.
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