Pointing over gaze: how saliency, proximity, and context shape spatial attention to embodied cues

Area of Science:

• Cognitive Psychology
• Social Neuroscience
• Human-Computer Interaction

Background:

• Embodied social cues, such as gaze and pointing, are crucial for directing attention.
• Previous research suggests potential differences in the effectiveness of various social cues.
• The relative efficacy of gaze versus pointing cues requires further investigation.

Purpose of the Study:

• To compare the effectiveness of gaze cues and pointing cues in directing attention.
• To examine the influence of saliency, spatial proximity, and trial context on cue effectiveness.
• To determine if embodied social cues influence attention uniformly.

Main Methods:

• Utilized a cartoon figure to present four cue types: gaze, peripheral pointing, central pointing, and a matched flower cue.
• Employed three experimental designs varying cue presentation: mixed blocks (Experiment 1 & 3) and blocked conditions (Experiment 2).
• Non-predictive validity was used to assess cue impact under different contextual arrangements.

Main Results:

• Pointing cues significantly outperformed gaze cues in directing attention, particularly in non-predictive and mixed-cue conditions.
• Blocked cue presentation (Experiment 2) enhanced cue effectiveness compared to mixed conditions.
• The superior effectiveness of pointing cues was independent of low-level salience, spatial proximity, and trial context.

Conclusions:

• Embodied social cues, specifically pointing and gaze, do not influence attention uniformly.
• Pointing cues demonstrate a robust advantage over gaze cues in guiding attention.
• The effectiveness of spatial cueing is modulated by trial context and expectations, but the pointing cue's advantage persists.