Aaron R Nidiffer

Aaron R Nidiffer
University of Rochester | UR · Department of Biomedical Engineering (School of Engineering)

Doctor of Philosophy

About

21
Publications
3,864
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346
Citations

Publications

Publications (21)
Article
Full-text available
Cognitive neuroscience, in particular research on speech and language, has seen an increase in the use of linear modeling techniques for studying the processing of natural, environmental stimuli. The availability of such computational tools has prompted similar investigations in many clinical domains, facilitating the study of cognitive and sensory...
Preprint
Cognitive neuroscience has seen an increase in the use of linear modelling techniques for studying the processing of natural, environmental stimuli. The availability of such computational tools has prompted similar investigations in many clinical domains, facilitating the study of cognitive and sensory deficits within an ecologically relevant conte...
Preprint
Full-text available
In noisy, complex environments, our ability to understand audio speech benefits greatly from seeing the speaker's face. This is attributed to the brain's ability to integrate audio and visual information, a process known as multisensory integration. In addition, selective attention to speech in complex environments plays an enormous role in what we...
Preprint
Full-text available
There is considerable debate over how visual speech is processed in the absence of sound and whether neural activity supporting lipreading occurs in visual brain areas. Surprisingly, much of this ambiguity stems from a lack of behaviorally grounded neurophysiological findings. To address this, we conducted an experiment in which human observers reh...
Preprint
Our perceptual system is adept at exploiting sensory regularities to better extract information about our environment. One clear example of this is how the sensory and multisensory systems can utilize consistency to group sensory features into a perceptual object and segregate objects from each other and background noise. Leveraging tenets of objec...
Article
Full-text available
Sensory signals originating from a single event, such as audiovisual speech, are temporally correlated. Correlated signals are known to facilitate multisensory integration and binding. We sought to further elucidate the nature of this relationship, hypothesizing that multisensory perception will vary with the strength of audiovisual correlation. Hu...
Article
Full-text available
Asynchronous arrival of audiovisual information at the peripheral sensory organs is a ubiquitous property of signals in the natural environment due to differences in the propagation time of light and sound. As these cues are constantly changing their distance from the observer, rapid adaptation to asynchronies is crucial for their appropriate integ...
Preprint
Full-text available
Sensory signals originating from a single event, such as audiovisual speech, are temporally correlated. Correlated signals are known to facilitate multisensory integration and binding. We sought to further elucidate the nature of this relationship, hypothesizing that multisensory perception will vary with the strength of audiovisual correlation. Hu...
Article
We process information from the world through multiple senses, and the brain must decide what information belongs together and what information should be segregated. One challenge in studying such multisensory integration is how to quantify the multisensory interactions, a challenge that is amplified by the host of methods that are now used to meas...
Article
Full-text available
The mammalian superior colliculus (SC) is made up of seven distinct layers. Based on overall differences in neuronal morphology, afferent and efferent projection patterns, physiological properties, and presumptive behavioral role, the upper three layers have been classically grouped together as the superficial layers and the remaining four layers c...
Article
Frequently, the presentation of stimuli from two sensory modalities results in behavioral benefits, including improvements in the detection and accuracy of responses and a speeding of response times. Although these benefits have been shown using both simple and complex multisensory stimulus pairs, they have not been extended to the domain of motion...
Chapter
Recent neurophysiological studies have highlighted the dramatic integrative capacity of multisensory neurons and networks in response to stimulus combinations. In comparison to this rapidly expanding wealth of data on adult multisensory circuits, substantially less has been written about how multisensory neurons and their associated networks develo...
Article
In natural environments, human sensory systems work in a coordinated and integrated manner to perceive and respond to external events. Previous research has shown that the spatial and temporal relationships of sensory signals are paramount in determining how information is integrated across sensory modalities, but in ecologically plausible settings...
Article
Full-text available
The process of integrating information across sensory modalities is highly dependent upon a number of stimulus characteristics, including spatial and temporal coincidence, as well as effectiveness. Typically, these properties have been studied in isolation, but recent evidence suggests that they are interactive. This study focuses on interactions b...
Article
Full-text available
Previous research has described several core principles of multisensory integration. These include the spatial principle, which relates the integrative product to the physical location of the stimuli and the principle of inverse effectiveness, in which minimally effective stimuli elicit the greatest multisensory gains when combined. In the vast maj...
Chapter
Full-text available
Along with these behavioral examples, there are myriad perceptual illustrations of the power of multisensory interactions. For example, the intensity of a light is perceived as greater when presented with a sound (Stein et al. 1996) and judgments of stimulus features such as speed and orientation are often more accurate when combined with informati...

Projects

Project (1)
Archived project
To characterize basic processes underlying the integration of multiple senses.