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A Cartesian reflex assessment of face processing.

Robert J Polewan1, Christopher M Vigorito, Christopher D Nason

  • 1University of Massachusetts Amherst, 01003, USA.

Behavioral and Cognitive Neuroscience Reviews
|July 4, 2006
PubMed
Summary
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This study measured response times to commands embedded in images, finding that processing costs (PC) were higher for complex stimuli like faces. These findings suggest differences in reaction times reflect varying information processing demands.

Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Human-Computer Interaction

Background:

  • Classical conditioning principles are foundational to understanding stimulus-response associations.
  • Response times (RTs) are a key metric for quantifying cognitive processing.
  • Processing cost (PC) quantifies the additional cognitive effort required to process stimuli.

Purpose of the Study:

  • To investigate the processing cost (PC) associated with attending to visual stimuli.
  • To compare the cognitive load of processing faces versus geometric shapes.
  • To explore the potential for a new mental chronometry based on information processing differences.

Main Methods:

  • Embedded commands for blinking within images of faces and geometric shapes.
  • Utilized classical conditioning paradigms with conditioned stimuli (CSs) and unconditioned stimuli (USs).

Related Experiment Videos

  • Measured response times (RTs) from conditioned stimulus onset to assess processing cost (PC).

    • Main Results:

    • Longer RTs were observed for commands embedded within stimuli compared to unconditioned commands alone.
    • Processing costs (PC) varied between different types of stimuli, with faces potentially eliciting higher costs.
    • Differences in RTs suggest varying levels of attentional processing and information extraction.

    Conclusions:

    • The interplay between attentional processing and signaling function influences response times.
    • Stimulus complexity, such as that of faces, impacts cognitive processing demands.
    • RT differences offer a basis for developing novel mental chronometry techniques.