Temporal Binding Window and Autism

[Concepts in Sensorimotor Research]

Temporal binding window (TBW) refers to the specific time frame during which the brain integrates and processes information from different sensory modalities. It is the period in which the brain combines and links stimuli occurring close in time and attributes them to a single event. This window is crucial for the perception of synchrony and the formation of coherent perceptual experiences.

In autistics, research suggests alterations in the TBW due to difficulties in accurately perceiving and integrating sensory information across different modalities, leading to difficulties in forming a unified perception of the world.

One aspect of the TBW that has been extensively studied in relation to autism is audiovisual integration. Typically, individuals are sensitive to the relative timing of auditory and visual stimuli and can perceive them as belonging to a single event when presented within a certain temporal proximity. However, studies have shown that autistics may have a broader or more extended TBW. This means that they require a longer temporal proximity between auditory and visual stimuli to perceive them as synchronized.

This winder TBW has implication in terms of social communication and interaction since the perception of synchrony is crucial for understanding and interpreting non-verbal cues such as facial expressions, gestures, and vocal intonations. Difficulties in integrating sensory information across different modalities can also contribute to sensory processing issues commonly observed in individuals with autism, such as hypersensitivity or hyposensitivity to certain stimuli.

TBW may also influence higher-level cognitive processes such as attention, perception of causality, and the ability to predict and anticipate events. Disruptions in these processes can impact the ability to understand the temporal structure of events and may contribute to difficulties with executive functioning.