To combine information from different sensory modalities, the brain must deal with considerable temporal uncertainty. In natural environments, an external event may produce simultaneous auditory and visual signals yet they will invariably activate asynchronously due to propagation speeds for light sound, neural response latencies once reach receptors. One strategy uses audiovisual timing variation is adapt a prevailing asynchrony help realign signals. Here, using psychophysical methods in...

Current models of attention, typically claim that vision and audition are limited by a common attentional resource which means visual performance should be adversely affected concurrent auditory task vice versa. Here, we test this implication measuring (pitch) (contrast) thresholds in conjunction with cross-modal secondary tasks find no such interference occurs. Visual contrast discrimination were unaffected chord or pitch discrimination, pitch-discrimination virtually search task. However,...

The neural mechanisms underlying attentional selection of competing signals for awareness remains an unresolved issue. We studied selection, using perceptually ambiguous stimuli in a novel multisensory paradigm that combined auditory and visual stimuli. demonstrate the ability to select, attentively hold, one alternatives either sensory modality is greatly enhanced when there matching cross-modal stimulus. Intriguingly, this multimodal enhancement seems require conscious act attention, as...

Abstract Perceptual systems face competing requirements: improving signal-to-noise ratios of noisy images, by integration; and maximising sensitivity to change, differentiation. Both processes occur in human vision, under different circumstances: they have been termed priming, or serial dependencies, leading positive sequential effects; adaptation habituation , which leads negative effects. We reasoned that for stable attributes, such as the identity gender faces, system should integrate:...

Millions of people use online dating sites each day, scanning through streams face images in search an attractive mate. Face images, like most visual stimuli, undergo processes whereby the current percept is altered by exposure to previous input. Recent studies using rapid sequences faces have found that perception identity biased towards recently seen faces, promoting identity-invariance over time, and this has been extended perceived attractiveness. In paper we adapt sequence task ask a...

Recent work from several groups has shown that perception of various visual attributes in human observers at a given moment is biased toward what was recently seen. This positive serial dependency kind temporal averaging exploits short-term correlations scenes to reduce noise and stabilize perception. To date, this stabilizing "continuity field" been demonstrated on stable such as orientation face identity, yet it would be counterproductive apply dynamic which change sensitivity needed....

Changes in sensory and multisensory function are increasingly recognized as a common phenotypic characteristic of Autism Spectrum Disorders (ASD). Furthermore, much recent evidence suggests that disturbances likely play an important role contributing to social communication weaknesses—one the core diagnostic features ASD. An established disturbance observed ASD is reduced audiovisual temporal acuity. In current study, we substantially extend these explorations within framework inability...

During binocular rivalry, incompatible images presented dichoptically compete for perceptual dominance. It has long been debated whether rivalry can be controlled by attention. Most studies have shown that voluntary control over is limited. We sought to remove attention from presenting a concurrent task. Diverting slowed the alternation rate, and did so in proportion difficulty of Even very demanding distractor task, however, not arrest alternations completely. Given diverting was equivalent...

Adaptation is one of the key constituents perceptual alternation process during binocular rivalry, as it has been shown that preadapting rivaling pairs before rivalry onset biases perception away from adapted stimulus rivalry. We investigated influence retinotopic and spatiotopic preadaptation on show for grating stimuli, only influences when adaptation locations are retinotopically matched. With more complex house face effects found both preadaptation, showing importance encoding in show,...

Background A prevailing view is that audiovisual integration requires temporally coincident signals. However, a recent study failed to find any evidence for in visual search even when using synchronized events. An important question what information critical observe integration. Methodology/Principal Findings Here we demonstrate temporal coincidence (i.e., synchrony) of auditory and components can trigger interaction cluttered displays consequently produce very fast efficient target...

REVIEW article Front. Hum. Neurosci., 27 September 2011Sec. Sensory Neuroscience volume 5 - 2011 | https://doi.org/10.3389/fnhum.2011.00105

Walking is among our most frequent and natural of voluntary behaviours, yet the consequences locomotion upon perceptual cognitive function remain largely unknown. Recent work has highlighted that although walking feels smooth continuous, critical phases exist within each step for successful coordination motor function. Here, we test whether these phasic demands impact visual perception, by assessing performance in a detection task during unencumbered walking. We finely sample over stride...