Semantic associations between arithmetic and space: Evidence from temporal order judgements.

Area of Science:

• Cognitive Psychology
• Neuroscience
• Experimental Psychology

Background:

• Spatial biases in arithmetic are often attributed to attention shifts along a mental number line.
• An alternative hypothesis suggests semantic associations between operators (plus/minus) and spatial locations influence responses.

Purpose of the Study:

• To investigate whether spatial biases in arithmetic tasks stem from attention orienting or semantic associations.
• To differentiate between the attention-orienting and semantic accounts of spatial biases in numerical cognition.

Main Methods:

• Temporal order judgment experiments involving auditory presentation of addition/subtraction problems.
• Lateralized visual targets presented shortly after arithmetic problems.
• Participants reported the order (first/last) of lateralized targets to dissociate attention from response side.

Main Results:

• Results from three experiments consistently supported the semantic association hypothesis.
• Spatial biases were observed regardless of whether participants focused on the first or last presented target.
• Evidence indicated that arithmetic operations bias responses based on learned semantic associations.

Conclusions:

• Spatial biases in arithmetic tasks are primarily driven by semantic associations between operators and spatial locations.
• The findings challenge the prevailing attention-orienting account of spatial biases in numerical processing.
• This research offers new insights into the cognitive mechanisms underlying numerical cognition and spatial biases.