Are Motion Perception Studies Overestimating Thresholds? How Our Biases Affect Perception
What is it about?
The article concerns the measurement of vestibular perceptual thresholds, which assess the minimum motion that an individual can reliably perceive, and its sensitivity to various factors such as age, pathology, and postural performance. The study hypothesizes that perceptual responses are influenced by preceding trials and that cognitive biases tend to affect responses in the opposite direction of the prior response, but not the preceding stimulus. The study found that the presence of cognitive bias can result in an overestimation of thresholds if not accounted for in the analysis. The results also suggest that the magnitude of cognitive bias varies across individuals, and by incorporating an enhanced model that considers such effects, measurement variability can be reduced, and data collection efficiency potentially improved.
Why is it important?
This article's significance lies in shedding light on the cognitive biases that affect our vestibular perceptual thresholds and the impact on data collection and interpretation. The study's findings suggest that our perception of motion is influenced by prior experiences, potentially leading to an overestimation of sensitivity thresholds if not accounted for. This discovery highlights the importance of considering cognitive biases when analyzing and interpreting vestibular perception data. By incorporating an enhanced model that accounts for cognitive biases, researchers can reduce measurement errors, leading to more accurate and reliable results.