scholarly journals Harmonicity of Sound Alters Roughness Perception

2022 ◽  
Author(s):  
Didem Katircilar ◽  
Funda Yildirim
Keyword(s):  
Nervous System ◽  
Multisensory Integration ◽  
Tactile Sense ◽  
Tactile Roughness ◽  
Different Characteristics ◽  
Roughness Perception

Multisensory integration refers to the integration of multiple senses by the nervous system. Auditory andtactile features are closely related senses as can be understood from the fact that adjectives such as soft,rough, and warm are used commonly for auditory and tactile features. Previous studies show that auditorycues play an important role to assess the roughness of a surface. Different characteristics of auditory cuessuch as amplitude and frequency may cause perceiving surface rougher or smoother. In this study, weinvestigate the effects of harmonic and inharmonic sounds on roughness perception to examine whetherauditory roughness will affect the tactile roughness perception while they are presented simultaneously.We expected the participants to perceive surfaces rougher while they listen to inharmonic sounds due toauditory roughness. We presented simultaneous and sequential harmonic and inharmonic sounds withthree sandpapers with different roughness levels (P100, P120, P 150 grit numbers) to the participants. Wefound that participants perceive sandpaper with the P120 grit number rougher while they listen tosimultaneous inharmonic sounds than simultaneous harmonic sounds. However, any effect of harmonicityon the sandpapers with P100 and P150 grit numbers was not observed. We suggest that auditoryroughness may enhance tactile roughness perception for surfaces with particular roughness levels,possibly when the roughness estimation from the tactile sense remains ambiguous.

Selective effects of auditory stimuli on tactile roughness perception

2008 ◽  
Vol 1242 ◽  
pp. 87-94 ◽  
Author(s):  
Yuika Suzuki ◽  
Jiro Gyoba ◽  
Shuichi Sakamoto
Keyword(s):  
Auditory Stimuli ◽  
Tactile Roughness ◽  
Roughness Perception ◽  
Selective Effects

Multisensory Integration

2008 ◽  
Vol 19 (10) ◽  
pp. 989-997 ◽  
Author(s):  
J.E. Lugo ◽  
R. Doti ◽  
Walter Wittich ◽  
Jocelyn Faubert
Keyword(s):  
Nervous System ◽  
Peripheral Nervous System ◽  
Multisensory Integration ◽  
Visual Stimulus ◽  
Lower Leg ◽  
Theoretical Framework ◽  
The Senses ◽  
The Brain

Multisensory integration in humans is thought to be essentially a brain phenomenon, but theories are silent as to the possible involvement of the peripheral nervous system. We provide evidence that this approach is insufficient. We report novel tactile-auditory and tactilevisual interactions in humans, demonstrating that a facilitating sound or visual stimulus that is exactly synchronous with an excitatory tactile signal presented at the lower leg increases the peripheral representation of that excitatory signal. These results demonstrate that during multisensory integration, the brain not only continuously binds information obtained from the senses, but also acts directly on that information by modulating activity at peripheral levels. We also discuss a theoretical framework to explain this novel interaction.

scholarly journals Tactile Roughness Perception of Virtual Gratings by Electrovibration

2020 ◽  
Vol 13 (3) ◽  
pp. 562-570 ◽  
Author(s):  
Aykut Isleyen ◽  
Yasemin Vardar ◽  
Cagatay Basdogan
Keyword(s):  
Tactile Roughness ◽  
Roughness Perception

scholarly journals Visual motion information modulates tactile roughness perception

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Yosuke Suzuishi ◽  
Souta Hidaka ◽  
Scinob Kuroki
Keyword(s):  
Visual Motion ◽  
Motion Information ◽  
Tactile Roughness ◽  
Roughness Perception

scholarly journals A collective modulatory basis for multisensory integration in C. elegans

2018 ◽  
Author(s):  
Gareth Harris ◽  
Taihong Wu ◽  
Gaia Linfield ◽  
Myung-Kyu Choi ◽  
He Liu ◽  
...  
Keyword(s):  
Decision Making ◽  
Nervous System ◽  
Multisensory Integration ◽  
Multisensory Processing ◽  
Neurological Diseases ◽  
Sensory Information ◽  
Sensory Cues ◽  
C Elegans ◽  
Behavioral Decision ◽  
Integrated Response

AbstractIn the natural environment, animals often encounter multiple sensory cues that are simultaneously present. The nervous system integrates the relevant sensory information to generate behavioral responses that have adaptive values. However, the signal transduction pathways and the molecules that regulate integrated behavioral response to multiple sensory cues are not well defined. Here, we characterize a collective modulatory basis for a behavioral decision in C. elegans when the animal is presented with an attractive food source together with a repulsive odorant. We show that distributed neuronal components in the worm nervous system and several neuromodulators orchestrate the decision-making process, suggesting that various states and contexts may modulate the multisensory integration. Among these modulators, we identify a new function of a conserved TGF-β pathway that regulates the integrated decision by inhibiting the signaling from a set of central neurons. Interestingly, we find that a common set of modulators, including the TGF-β pathway, regulate the integrated response to the pairing of different foods and repellents. Together, our results provide insights into the modulatory signals regulating multisensory integration and reveal potential mechanistic basis for the complex pathology underlying defects in multisensory processing shared by common neurological diseases.Author SummaryThe present study characterizes the modulation of a behavioral decision in C. elegans when the worm is presented with a food lawn that is paired with a repulsive smell. We show that multiple sensory neurons and interneurons play roles in making the decision. We also identify several modulatory molecules that are essential for the integrated decision when the animal faces a choice between the cues of opposing valence. We further show that many of these factors, which often represent different states and contexts, are common for behavioral decisions that integrate sensory information from different types of foods and repellents. Overall, our results reveal a collective molecular and cellular basis for integration of simultaneously present attractive and repulsive cues to fine-tune decision-making.

scholarly journals Diagnostics and Neuropsychological Correction of Children with Neurosis-Like Enuresis and Encopresis

2017 ◽  
Vol 6 (1) ◽  
pp. 48-62
Author(s):  
D. Bereskin
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Cognitive Functions ◽  
Motor Coordination ◽  
Diagnostic Techniques ◽  
Temporal Organization ◽  
The Central Nervous System ◽  
Spatio Temporal ◽  
Different Characteristics ◽  
Functional Indices

The experience of a work with a group of children with enuresis (six patients) and encopresis (one patient) both of residual-organic origin is analyzed in this article. Work included psychological diagnostic techniques and psychological correction. Psychological diagnostic evaluation was directed to the measurements of different characteristics of sensorimotor reactions, memory, attention and cognitive functions. Functional characteristics of the central nervous system in children with enuresis and encopresis were approximated to those recorded in their healthy peers, while the cognitive functions in present group of children were lower. Psychological correction has included neuropsychological methods, which were aimed at the development of: visual-motor coordination, spatio-temporal organization relations and logic constructions understanding. Based on children's and parent's self-reports and based on medical records also it can be assumed that proposed psychological correction can be effective in enuresis and encopresis in children with similar characteristics, which can be observed. The significance of the functional indices evaluation of the central nervous system by measuring various characteristics of sensorimotor reactions substantiate by results obtained.

Some aspects of mammalian hearing under water

1960 ◽  
Vol 152 (946) ◽  
pp. 54-62 ◽  
Keyword(s):  
Nervous System ◽  
Low Frequency ◽  
Pressure Waves ◽  
Sound Waves ◽  
Tactile Sense ◽  
Very Low Frequency ◽  
Lateral Line Organ ◽  
Hearing Organ ◽  
Line Organ ◽  
Remote Past

In all probability the first, most primitive life must have had its origin in the water. When one tries to form an idea of the development of ‘hearing under water’, it is understandable that the formation of an adequate sensory apparatus for hearing depends on the development of the tactile sense, and later on the coming into being of a nervous system, lateral line organ, and finally on the formation of the stato-acoustic end-organs of the labyrinth. This gives little cause for wonder, as the reaction to pressure waves must have been an early felt biological necessity. The step from pressure waves under water to sound waves of very low frequency is neither a great nor a fundamental step; it is merely the addition of sound modality to vibration. Before, in a remote past, dramatic geological changes had created the conditions for the development of life on land and therefore also for life in the air, the fishes were the most highly developed vertebrates. They probably possessed a hearing organ entirely adapted and adjusted to hearing under water. We assume that some of these animals possessed the potency to answer with success the tremendous demands made by the transition to land life. Under-water hearing was transmuted into air-hearing. Air-hearing finally reached its highest degree of development in the mammals.

scholarly journals Haltere and visual inputs sum linearly to predict wing (but not gaze) motor output in tethered flying Drosophila

2021 ◽  
Vol 288 (1943) ◽  
pp. 20202374
Author(s):  
Michael J. Rauscher ◽  
Jessica L. Fox
Keyword(s):  
Nervous System ◽  
Visual System ◽  
Multisensory Integration ◽  
Sensory System ◽  
Inertial Forces ◽  
Experimental Paradigm ◽  
Linear Superposition ◽  
Visual Inputs ◽  
Direct Head ◽  
Motor Outputs

In the true flies (Diptera), the hind wings have evolved into specialized mechanosensory organs known as halteres, which are sensitive to gyroscopic and other inertial forces. Together with the fly's visual system, the halteres direct head and wing movements through a suite of equilibrium reflexes that are crucial to the fly's ability to maintain stable flight. As in other animals (including humans), this presents challenges to the nervous system as equilibrium reflexes driven by the inertial sensory system must be integrated with those driven by the visual system in order to control an overlapping pool of motor outputs shared between the two of them. Here, we introduce an experimental paradigm for reproducibly altering haltere stroke kinematics and use it to quantify multisensory integration of wing and gaze equilibrium reflexes. We show that multisensory wing-steering responses reflect a linear superposition of haltere-driven and visually driven responses, but that multisensory gaze responses are not well predicted by this framework. These models, based on populations, extend also to the responses of individual flies.

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