Asymmetric coding of categorical spatial relations in both language and vision

Area of Science:

• Cognitive Psychology
• Neuroscience
• Linguistics

Background:

• Spatial relationships often require asymmetric roles (e.g., target/reference).
• This asymmetry is well-established in language.
• Its presence in perceptual representations is less understood.

Purpose of the Study:

• To investigate whether perceptual representations of spatial relationships exhibit asymmetry.
• To explore the role of attention in guiding this perceptual asymmetry.
• To determine if attention influences the assignment of linguistic roles (target/reference) in perception.

Main Methods:

• Developed a model of visual spatial judgment.
• Used attentional cuing (brief preview) to direct attention to one object in a pair.
• Measured reaction times for verifying spatial relations (left-right, above-below).

Main Results:

• Participants were faster to verify spatial relations when attention was cued to the object acting as the linguistic target.
• This effect was observed for both left-right and above-below spatial relations.
• Demonstrated a link between attentional spotlight and asymmetric coding of spatial relations.

Conclusions:

• Perceptual representations of certain spatial relations are likely asymmetric.
• The spotlight of attention plays a crucial role in guiding this perceptual asymmetry.
• Findings suggest attention mechanisms influence how we process and represent spatial information.