Scene Context Impairs Perception of Semantically Congruent Objects

Area of Science:

• Cognitive Psychology
• Neuroscience
• Visual Perception

Background:

• Visual scene context typically enhances object recognition.
• Predictive processing theories suggest congruent objects may receive less attention due to reduced prediction-error signals.
• This challenges the conventional view of scene-based object processing.

Purpose of the Study:

• To investigate the counterintuitive hypothesis that scene congruency impairs object perception.
• To test whether congruent objects are processed less efficiently than incongruent ones.
• To provide empirical evidence for or against the role of prediction error in visual scene perception.

Main Methods:

• Conducted two online behavioral experiments with 300 human participants.
• Utilized a change-detection task to measure response times.
• Employed a bias-free object-discrimination task to assess accuracy.
• Collected subjective congruency ratings for stimuli.

Main Results:

• Demonstrated impaired perception of congruent objects compared to incongruent ones.
• Observed slower response times in change detection for congruent objects.
• Found reduced accuracy in object discrimination for congruent items.
• Correlated congruency costs with subjective congruency ratings.

Conclusions:

• Provided strong evidence for perceptual congruency costs in visual scene viewing.
• Supported predictive processing theories by showing reduced processing for congruent objects.
• Ruled out alternative explanations such as low-level confounds, response biases, or strategic effects.