Interactions between multisensory integration and attention were studied using a combined audiovisual streaming design rapid serial visual presentation paradigm. Event-related potentials (ERPs) following objects (AV) compared with the sum of ERPs auditory (A) (V). Integration processes expressed as difference these AV (A + V) responses while was directed to one or both modalities elsewhere. Results show that effects depend on being fully attended—that is, when senses attended. In this...

Abstract We used event-related potentials (ERPs) to evaluate the role of attention in integration visual and auditory features multisensory objects. This was done by contrasting ERPs stimuli (AV) sum corresponding auditory-only (A) visual-only (V) [i.e., AV vs. (A + V)]. V, A, VA were presented random order left right hemispaces. Subjects attended a designated side detect infrequent target either modality there. The focus this report is on standard (i.e., nontarget) stimuli. rapid variable...

EVENT-RELATED potentials (ERPs) were recorded as 12 subjects performed a delayed matching to sample task. We presented two bilateral abstract shapes and cued spatially which had be memorized for subsequent task: left, right or both. During memorization posterior slow negative ERP wave developed over the hemisphere contralateral shape. This effect was similar in high low memory load trials while figures visible (for 1000 ms). As disappeared 1500 ms), persisted only conditions. suggest that...

The role attention plays in our experience of a coherent, multisensory world is still controversial. On the one hand, subset inputs may be selected for detailed processing and integration top-down manner, i.e., guidance by attention. other stimuli integrated bottom-up fashion according to low-level properties such as spatial coincidence, thereby capturing Moreover, itself multifaceted can described via both mechanisms. Thus, interaction between complex situation-dependent. authors this...

Abstract The present study shows that an abrupt onset cue is not consciously perceived can cause attentional facilitation followed by inhibition at the cued location. observation of this classic biphasic effect return (IOR) suggests subliminal captured attention in a purely exogenous way. Since IOR observed following endogenous shifts spatial attention, but exogenous, stimulus-driven it unlikely top-down control settings or other non-attentional effects played role. current findings are...

Oftentimes, we perceive our environment by integrating information across multiple senses. Recent studies suggest that such integration occurs at much earlier processing stages than once thought possible, including in thalamic nuclei and putatively unisensory cortical brain regions. Here, used diffusion tensor imaging (DTI) an audiovisual task to test the hypothesis anatomical connections between sensory-related subcortical structures sensory areas govern multisensory humans. Twenty-five...

Abstract One finding in attention research is that visual and auditory mechanisms are linked together. Such a link would predict central, amodal capacity limit processing stimuli. Here we show this not the case. Letter streams were accompanied by asynchronously presented of auditory, visual, audiovisual objects. Either letter or parts object attended. Attending to various aspects objects resulted modulations letter‐stream‐elicited steady‐state evoked potentials (SSVEPs). SSVEPs larger when...

Reward prediction errors (RPEs) are thought to drive learning. This has been established in procedural learning (e.g., classical and operant conditioning). However, empirical evidence on whether RPEs declarative learning–a quintessentially human form of learning–remains surprisingly absent. We therefore coupled the acquisition Dutch-Swahili word pairs a paradigm. Signed (SRPEs; "better-than-expected" signals) during improved recognition follow-up test, with increasingly positive leading...

It has been established that there is an interaction between audition and vision in the appraisal of our living environment, this influenced by personal factors. Here, we test hypothesis audiovisual aptitude influences sonic visual environment. To measure aptitude, auditory deviant detection experiment was conducted ecologically valid complex context. This allows us to distinguish accurate less listeners. Additionally, it participants are easily visually distracted those who not. do so, two...

Pre-stimulus electroencephalogram (EEG) oscillations, especially in the alpha range (8-13 Hz), can affect sensitivity to temporal lags between modalities multisensory perception. The effects of power are often explained terms alpha's inhibitory functions, whereas frequency have bolstered theories discrete perceptual cycles, where length a cycle, or window integration, is determined by frequency. Such studies typically employ visual detection paradigms with near-threshold even illusory...

The temporal asynchrony between inputs to different sensory modalities has been shown be a critical factor influencing the interaction such inputs. We used scalp-recorded event-related potentials (ERPs) investigate effects of attention on processing audiovisual multisensory stimuli as auditory and visual varied across integration window (i.e., up 125 ms). Randomized streams unisensory stimuli, (consisting temporally proximal presentation stimulus components) were presented centrally while...

This study investigated the possible relationship between hypokinetic speech production and intensity perception in patients with Parkinson's disease (PD).Participants included 14 idiopathic PD matched healthy controls (HCs) normal hearing cognition. First, was objectified through a standardized intelligibility assessment, acoustic analysis, measurements. Second, an overall estimation task were addressed to evaluate perception, respectively. Finally, correlation analysis performed...

The present study focuses on the question of whether inter‐ and intramodal forms attention are reflected in activation same or different brain areas. ERPs were recorded while subjects presented a random sequence visual auditory stimuli. They instructed to attend nonspatial attributes either stimuli detect occasional target within attended channel. An occipital selection negativity was found for Visual intermodal also manifested similar negativity. A symmetrical dipole pair medial inferior...