Related Experiment Video
Updated: Feb 19, 2026

A Two-interval Forced-choice Task for Multisensory Comparisons
Published on: November 9, 2018
Perceptual judgments made better by indirect interactions: Evidence from a joint localization task.
Pavel Valeryevich Voinov1, Natalie Sebanz1, Günther Knoblich1
1Department of Cognitive Science, Central European University, Budapest, Hungary.
Individuals benefit from observing others' perceptual judgments in shared environments, improving accuracy in target location tasks. Pairs performed best when sharing complementary perspectives, highlighting the importance of shared environments for integrating perceptual information.
Area of Science:
- Cognitive Psychology
- Perception
- Human-Computer Interaction
Background:
- Social influence significantly impacts individual perceptual judgments.
- Communication between task partners enhances perceptual accuracy.
- The role of indirect interactions and shared environments in perceptual learning is less understood.
Purpose of the Study:
- To investigate if individuals benefit from others' perceptual judgments in indirect interactions within a shared environment.
- To examine how complementary perspectives influence collaborative target localization accuracy.
- To understand the weighting of others' judgments in shared perceptual tasks.
Main Methods:
- Participants performed target localization in a 2D projection of a 3D container with high front-back uncertainty.
- Two experiments explored judgments from complementary viewpoints versus single viewpoints.
- Performance was compared between individuals and pairs with varying access to perspectives.
Main Results:
- Pairs demonstrated improved accuracy by taking turns providing judgments.
- Pairs with access to one complementary perspective achieved accuracy comparable to those with both perspectives.
- Performance was superior to individuals using only a single perspective.
Conclusions:
- Shared environments facilitate the integration of perceptual information from others.
- Collaborative target localization benefits from shared complementary perspectives.
- Individuals show limitations in appropriately weighting others' judgments even in shared environments.
Related Concept Videos
Perceptual Constancy
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
Depth Perception and Spatial Vision
Perception
Bottom-up processing begins at the sensory level, where receptors detect external environmental stimuli. These could include the tactile sensation of...
The Anchoring-and-Adjustment Heuristic
Perceiving Loudness, Pitch, and Location
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by...
Introducing Social Perception

