Common coding in symbolic matching tasks with humans: training with a common consequence or antecedent

Area of Science:

• Cognitive Psychology
• Behavioral Science
• Learning and Memory

Background:

• Common coding is a phenomenon where different stimuli evoke shared representations.
• Understanding common coding is crucial for explaining how humans learn and generalize symbolic relationships.
• Symbolic matching-to-sample tasks are widely used to investigate learning and cognitive processes.

Purpose of the Study:

• To investigate the role of common antecedents versus common consequences in establishing common coding.
• To examine common coding in many-to-one (MTO) and one-to-many (OTM) symbolic matching tasks.
• To test predictions derived from associative mediational approaches to common coding.

Main Methods:

• Human subjects performed symbolic matching-to-sample tasks under MTO and OTM conditions.
• Reversal and transfer tests were employed to assess the degree of common coding.
• Experiment 1 used reversal tests to compare learning under different contingency structures.
• Experiment 2 used transfer tests to evaluate performance based on consistency of common coding relations.

Main Results:

• Evidence for common coding was found in both MTO and OTM tasks across both experiments.
• Common coding was more pronounced in the MTO discrimination compared to OTM in Experiment 1.
• Performance in transfer tests indicated the influence of previously established common coding relations.

Conclusions:

• The findings support associative mediational theories of common coding.
• Training with a common consequence appears more effective in establishing common coding than training with a common antecedent.
• These results provide insights into the fundamental mechanisms underlying symbolic learning and generalization.