scholarly journals Attention Distributed across Sensory Modalities Enhances Perceptual Performance

2012 ◽  
Vol 32 (35) ◽  
pp. 12294-12302 ◽  
Author(s):  
J. Mishra ◽  
A. Gazzaley
Keyword(s):  
Sensory Modalities ◽  
Perceptual Performance

Plasticity During Short-Term Visual Deprivation

2016 ◽  
Vol 224 (2) ◽  
pp. 125-132 ◽  
Author(s):  
Stefan Brodoehl ◽  
Carsten Klingner ◽  
Denise Schaller ◽  
Otto W. Witte
Keyword(s):  
Visual Deprivation ◽  
Short Term ◽  
Substantial Impact ◽  
Sensory Modalities ◽  
Perceptual Performance ◽  
Reversible Loss ◽  
Fmri Analysis ◽  
General Aspects ◽  
Eye Closure ◽  
Insight Into

Abstract. During everyday experiences, people sometimes close their eyes to better understand spoken words, to listen to music, or when touching textures and objects. A plausible explanation for this observation is that a reversible loss of vision changes the perceptual function of the remaining non-deprived sensory modalities. Within this work, we discuss general aspects of the effects of visual deprivation on the perceptual performance of the non-deprived sensory modalities with a focus on the time dependency of these modifications. In light of ambiguous findings concerning the effects of short-term visual deprivation and because recent literature provides evidence that the act of blindfolding can change the function of the non-deprived senses within seconds, we performed additional psychophysiological and functional magnetic resonance imaging (fMRI) analysis to provide new insight into this matter. Eye closure for several seconds led to a substantial impact on tactile perception probably caused by an unmasking of preformed neuronal pathways.

scholarly journals Crossmodal metaperception: Visual and tactile confidence share a common scale

2021 ◽  
Author(s):  
Lena Klever ◽  
Marie Mosebach ◽  
Katja Fiehler ◽  
Pascal Mamassian ◽  
Jutta Billino
Keyword(s):  
Cognitive Control ◽  
Common Mechanism ◽  
Reliable Estimate ◽  
Visual Contrast ◽  
Sensory Modalities ◽  
Perceptual Performance ◽  
Forced Choice Task ◽  
Perceptual Confidence ◽  
Tactile Modality ◽  
Robust Evidence

Perceptual decisions are typically accompanied by a subjective sense of (un)certainty. There is robust evidence that observers have access to a reliable estimate of their own uncertainty and can judge the validity of their perceptual decisions. However, there is still a debate to what extent these meta-perceptual judgements underly a common mechanism that can monitor perceptual decisions across different sensory modalities. It has been suggested that perceptual confidence can be evaluated on an abstract scale that is not only task-independent but also modality-independent. We aimed to scrutinize these findings by measuring visual contrast and tactile vibration discrimination thresholds in a confidence forced-choice task. A total of 56 participants took part in our study. We determined thresholds for trials in which perceptual decisions were chosen as confident and for those that were declined as confident. Confidence comparisons were made between perceptual decisions either within the visual and tactile modality, respectively, or across both modalities. Furthermore, we assessed executive functions to explore a possible link between cognitive control and meta-perceptual capacities. We found that perceptual performance was a good predictor of confidence judgments and that the threshold modulation was similarly pronounced in both modalities. Most importantly, participants compared their perceptual confidence across visual and tactile decisions with the same precision as within the same modality. Cognitive control capacities were not related to meta-perceptual performance. In conclusion, our findings corroborate that perceptual uncertainty can be accessed on an abstract scale, allowing for confidence comparisons across sensory modalities.

Can Behavioral Speech-In-Noise Tests Improve the Quality of Hearing Aid Fittings?

2011 ◽  
Vol 7 (1) ◽  
pp. 8-14
Author(s):  
Robert Moore ◽  
Susan Gordon-Hickey
Keyword(s):  
Working Memory ◽  
Speech Perception ◽  
Performance Test ◽  
Hearing Aid ◽  
Speech Perception In Noise ◽  
Speech In Noise ◽  
Acceptable Noise Level ◽  
Perceptual Performance ◽  
Noise Test

The purpose of this article is to propose 4 dimensions for consideration in hearing aid fittings and 4 tests to evaluate those dimensions. The 4 dimensions and tests are (a) working memory, evaluated by the Revised Speech Perception in Noise test (Bilger, Nuetzel, & Rabinowitz, 1984); (b) performance in noise, evaluated by the Quick Speech in Noise test (QSIN; Killion, Niquette, Gudmundsen, Revit, & Banerjee, 2004); (c) acceptance of noise, evaluated by the Acceptable Noise Level test (ANL; Nabelek, Tucker, & Letowski, 1991); and (d) performance versus perception, evaluated by the Perceptual–Performance test (PPT; Saunders & Cienkowski, 2002). The authors discuss the 4 dimensions and tests in the context of improving the quality of hearing aid fittings.

Reaction Time and Brain Waves in Omitted Stimulus Tasks

2010 ◽  
Vol 24 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Oscar H. Hernández ◽  
Muriel Vogel-Sprott
Keyword(s):  
Reaction Time ◽  
Cognitive Processes ◽  
Young Male ◽  
Event Related Potential ◽  
Auditory Stimuli ◽  
Motor Action ◽  
Cognitive Component ◽  
Sensory Modalities ◽  
Two Measures ◽  
Somatosensory Stimuli

A missing stimulus task requires an immediate response to the omission of a regular recurrent stimulus. The task evokes a subclass of event-related potential known as omitted stimulus potential (OSP), which reflects some cognitive processes such as expectancy. The behavioral response to a missing stimulus is referred to as omitted stimulus reaction time (RT). This total RT measure is known to include cognitive and motor components. The cognitive component (premotor RT) is measured by the time from the missing stimulus until the onset of motor action. The motor RT component is measured by the time from the onset of muscle action until the completion of the response. Previous research showed that RT is faster to auditory than to visual stimuli, and that the premotor of RT to a missing auditory stimulus is correlated with the duration of an OSP. Although this observation suggests that similar cognitive processes might underlie these two measures, no research has tested this possibility. If similar cognitive processes are involved in the premotor RT and OSP duration, these two measures should be correlated in visual and somatosensory modalities, and the premotor RT to missing auditory stimuli should be fastest. This hypothesis was tested in 17 young male volunteers who performed a missing stimulus task, who were presented with trains of auditory, visual, and somatosensory stimuli and the OSP and RT measures were recorded. The results showed that premotor RT and OSP duration were consistently related, and that both measures were shorter with respect to auditory stimuli than to visual or somatosensory stimuli. This provides the first evidence that the premotor RT is related to an attribute of the OSP in all three sensory modalities.

The Rob and Fran test: Relationship priming influences cognitive-perceptual performance

2014 ◽  
Author(s):  
Joshua C. Jackson ◽  
Mark Baldwin ◽  
Jeff Bagust ◽  
Sharon Docherty ◽  
Alexander Browman
Keyword(s):  
Perceptual Performance

Perceptual Performance And The Effective Person

1958 ◽  
Author(s):  
Richard S. Crutchfield ◽  
Donald G. Woodworth ◽  
Ruth E. Albrecht
Keyword(s):  
Perceptual Performance

Mapping the Core Factors of Visual Perceptual Performance

2013 ◽  
Author(s):  
Lawrence G. Appelbaum ◽  
Tarik Bel-Bahar ◽  
Lingling Wang ◽  
Lauren Hughes ◽  
Kristina Krasich ◽  
...  
Keyword(s):  
The Core ◽  
Perceptual Performance

scholarly journals Business incubator management and entrepreneur collaboration with R&D milieus: Does the regional context matter?

2021 ◽  
pp. 146575032110308
Author(s):  
Jarle Aarstad ◽  
Stig-Erik Jakobsen ◽  
Lene Foss
Keyword(s):  
Market Orientation ◽  
Education Level ◽  
Enterprise Development ◽  
Business Incubators ◽  
Business Incubator ◽  
Regional Context ◽  
Perceptual Performance

We study whether business incubator management collaboration with R&D milieus affects incubated entrepreneurs to also collaborate with R&D milieus in different regional contexts. Empirically, we analyse 281 Norwegian entrepreneurs in 32 different business incubators. Incubator collaboration with R&D milieus increases entrepreneur collaboration with R&D milieus in sparsely but not densely populated regions. Also, education level increases collaboration with R&D milieus (plus investor milieus and international customers). Entrepreneur collaboration with R&D milieus is positively associated with market orientation and perceptual performance but tends to delay enterprise development.

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