Attention-shift vs. response-priming explanations for the spatial cueing effect in cross-modal tasks

Area of Science:

• Cognitive Psychology
• Neuroscience
• Auditory Perception

Background:

• The Posner effect demonstrates how cue location influences target processing, typically explained by exogenous attention shifts.
• This study investigates if auditory cues, independent of task relevance, can elicit similar cueing effects on visual target processing.

Purpose of the Study:

• To examine the influence of task-irrelevant auditory cue location on visual target processing.
• To test the validity of the attention-shift model versus response priming as explanations for these effects.

Main Methods:

• Participants responded to visual targets (peripheral or central arrows) preceded by laterally presented, uninformative tones.
• Behavioral data (reaction times) and simultaneous lateralized readiness potential (LRP) recordings were collected.
• Trials were categorized as compatible or incompatible based on cue-target-response relationships.

Main Results:

• Reaction times were significantly longer on incompatible trials compared to compatible trials.
• LRP data indicated faster preparation for the correct response on compatible trials and for the incorrect response on incompatible trials.
• Findings challenge the attention-shift model for central targets, supporting response priming.

Conclusions:

• Auditory cue location can influence visual target processing through response priming, especially when targets lack spatial demands.
• The results indicate that the Posner effect may involve more than just exogenous attention shifts.
• Response priming offers a more comprehensive explanation for cueing effects in certain experimental paradigms.