Disentangling semantic and response learning effects in color-word contingency learning

Area of Science:

• Cognitive Psychology
• Experimental Psychology
• Neuroscience

Background:

• Color-word contingency learning describes the tendency to more easily identify the ink color of a neutral word when it matches prior associations.
• Previous research has not clearly distinguished between learning semantic (word-color) and response (word-button) associations.

Purpose of the Study:

• To investigate whether semantic and response associations are learned independently in a color-word contingency learning paradigm.
• To disentangle the contributions of semantic and response learning by manipulating word-color and word-button associations separately.

Main Methods:

• Four experiments were conducted over four daily sessions using pseudowords probabilistically associated with specific colors or response-button positions.
• A novel paradigm manipulated word-color and word-button associations independently, including neutral trials and varying participants' awareness of contingencies.
• Deeper processing of color information was induced by presenting color words in black instead of color patches.

Main Results:

• No significant influence of explicit contingency awareness on learning was observed.
• Clear and swift evidence for both response learning and semantic learning was found.
• Deeper color information processing enhanced both semantic and response learning effects.

Conclusions:

• Semantic learning occurs incidentally in color-word contingency learning, even without explicit awareness.
• Both semantic (word-color) and response (word-button) associations are learned, and their learning can be enhanced by deeper processing.
• This study provides critical evidence clarifying the nature of associations formed during color-word contingency learning.