Attention modulates the effects of stimulus brightness and contrast on time perception

Datos Bibliográficos

ID21640403
AutoresHakan Karsilar (0000-0001-8940-8851, University of Groningen, autor de correspondencia), Hedderik Van Rijn (0000-0002-0461-9850, University of Groningen), Sebastiaan Mathôt (0000-0003-3379-8584, University of Groningen)
Año2026
Volumen33
Número4
Fecha de publicación2026-04-01
Peer ReviewedSí
Open AccessSí
TipoARTICLE
RevistaPsychonomic Bulletin & Review (JOURNAL)
Identificadores de la revistaISSN: 1069-9384 • E-ISSN: 1531-5320
EditorialSpringer Science and Business Media LLC (PUBLISHER)
DOI10.3758/s13423-026-02893-9
PMID41857475
OpenAlexW7138921435
IdiomaEN
Referencias citadas66

The perception of duration is influenced by various factors, including attention and the physical properties of stimuli. However, the interaction between these factors remains poorly understood. The present study investigated how covert visual attention, stimulus brightness, and contrast jointly influence time perception using a novel attentional temporal bisection task. Participants categorized the duration of a cued target stimulus as “short” or “long” while the brightness and contrast (relative to background) of the target and a distractor stimulus were systematically manipulated. Results showed that high-contrast targets were perceived as lasting longer than low-contrast targets. Surprisingly, brighter targets were perceived as shorter than dimmer targets. At the unattended location, the effects of distractor contrast and brightness were the mirror image, such that targets were perceived as longer in the presence of bright distractors and (though not reliably) low-contrast distractors. Taken together, the findings point to local encoding effects at the target (contrast lengthens; higher target brightness shortens) and a modest decisional/context bias from the distractor, consistent with partial competition across locations. Findings further indicate that contrast, rather than absolute brightness, is the primary determinant of perceived duration, with its effects mediated by attention. This study provides novel insights into how bottom-up stimulus properties and top-down attention jointly influence temporal processing, highlighting the need for more nuanced models of time perception that account for the complex interplay between attention, brightness, and contrast. Finally, the counterintuitive finding that increasing brightness can shorten perceived duration challenges the notion of a monotonic relationship between stimulus intensity and perceived time

Brightness · Counterintuitive · Covert · Cued speech · Perception · Second-order stimulus · Time perception · Multisensory perception and integration · Neural and Behavioral Psychology Studies · Neuroscience and Music Perception