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https://www.readbyqxmd.com/read/28229428/low-is-large-spatial-location-and-pitch-interact-in-voice-based-body-size-estimation
#1
Katarzyna Pisanski, Sari G E Isenstein, Kelyn J Montano, Jillian J M O'Connor, David R Feinberg
The binding of incongruent cues poses a challenge for multimodal perception. Indeed, although taller objects emit sounds from higher elevations, low-pitched sounds are perceptually mapped both to large size and to low elevation. In the present study, we examined how these incongruent vertical spatial cues (up is more) and pitch cues (low is large) to size interact, and whether similar biases influence size perception along the horizontal axis. In Experiment 1, we measured listeners' voice-based judgments of human body size using pitch-manipulated voices projected from a high versus a low, and a right versus a left, spatial location...
February 22, 2017: Attention, Perception & Psychophysics
https://www.readbyqxmd.com/read/28228741/perception-and-modeling-of-affective-qualities-of-musical-instrument-sounds-across-pitch-registers
#2
Stephen McAdams, Chelsea Douglas, Naresh N Vempala
Composers often pick specific instruments to convey a given emotional tone in their music, partly due to their expressive possibilities, but also due to their timbres in specific registers and at given dynamic markings. Of interest to both music psychology and music informatics from a computational point of view is the relation between the acoustic properties that give rise to the timbre at a given pitch and the perceived emotional quality of the tone. Musician and nonmusician listeners were presented with 137 tones produced at a fixed dynamic marking (forte) playing tones at pitch class D# across each instrument's entire pitch range and with different playing techniques for standard orchestral instruments drawn from the brass, woodwind, string, and pitched percussion families...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28227560/a-dual-axis-single-proof-mass-angular-accelerometer-for-a-vestibular-prosthesis
#3
Yaesuk Jeong, Hakan Toreyin, Anosh Daruwalla, Pamela Bhatti, Farrokh Ayazi, Yaesuk Jeong, Hakan Toreyin, Anosh Daruwalla, Pamela Bhatti, Farrokh Ayazi, Farrokh Ayazi, Anosh Daruwalla, Yaesuk Jeong, Hakan Toreyin, Pamela Bhatti
A dual-axis single-proof-mass angular accelerometer has been developed for a vestibular prosthesis. Designed to sense head rotations both in the yaw and the pitch planes, the output of the inertial sensor may be coded as amplitude or rate modulated biphasic current pulses to stimulate vestibular nerves. Fabricated with a high aspect ratio commercial process, a sensor with small form factor (1.4 mm × 0.8 mm) is achieved with a scale factor of 95.5 μV/rad/sec(2) and 145.8 μV/rad/sec(2) in the yaw and the pitch planes, respectively...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227531/step-length-and-width-variability-while-walking-on-a-motion-simulator-mounted-treadmill
#4
Timothy Boerger, Jacob Van Dehy, Tanya Onushko, Brian Schmit, Allison Hyngstrom, Timothy Boerger, Jacob Van Dehy, Tanya Onushko, Brian Schmit, Allison Hyngstrom, Timothy Boerger, Brian Schmit, Allison Hyngstrom, Jacob Van Dehy, Tanya Onushko
While devices which allow scientists to perturb normal walking are becoming increasingly common, postural adaptations to these perturbations have not been fully quantified. One way to quantify postural responses to perturbations are through the assessment of variability of step length and width. In the present study we determined variability of both step length and width while subjects walked under perturbations of varying amplitude in roll, pitch, yaw, anteroposterior, lateral, and combined roll, pitch, yaw directions...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226970/automated-social-skills-training-with-audiovisual-information
#5
Hiroki Tanaka, Sakriani Sakti, Graham Neubig, Hideki Negoro, Hidemi Iwasaka, Satoshi Nakamura, Hiroki Tanaka, Sakriani Sakti, Graham Neubig, Hideki Negoro, Hidemi Iwasaka, Satoshi Nakamura, Sakriani Sakti, Hidemi Iwasaka, Hiroki Tanaka, Satoshi Nakamura, Graham Neubig, Hideki Negoro
People with social communication difficulties tend to have superior skills using computers, and as a result computer-based social skills training systems are flourishing. Social skills training, performed by human trainers, is a well-established method to obtain appropriate skills in social interaction. Previous works have attempted to automate one or several parts of social skills training through human-computer interaction. However, while previous work on simulating social skills training considered only acoustic and linguistic features, human social skills trainers take into account visual features (e...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226821/cortical-auditory-evoked-potentials-caeps-represent-neural-cues-relevant-to-pitch-perception
#6
Xiaochen Zhang, Qin Gong, Tao Zhang, Xiaochen Zhang, Qin Gong, Tao Zhang, Xiaochen Zhang, Tao Zhang, Qin Gong
Components of auditory event-related potentials (ERPs) may represent various aspects of the cortical processing of pitch. However, evidence hints an earlier representation of pitch perception in auditory ERPs of cortical origin. In this study, we examined whether earlier waves in cortical auditory evoked potentials (CAEPs) might reflect pitch-relevant features of both listeners and stimuli. CAEPs were elicited by pure tones and sweeping tones, and individual behavioral performance in pitch discrimination reflected by frequency difference limen (FDL) was also measured...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225849/effect-of-performance-time-of-the-high-pitched-blowing-vocal-exercise-in-the-voice-of-women
#7
Fabíola Santos Moreira, Ana Cristina Côrtes Gama
Purpose: To analyze the results of the runtimes of one, three, five, and seven minutes of the high-pitched blowing vocal exercise in women without voice complaints and with dysphonia and vocal nodules. Methods: This is an experimental study with a consecutive and convenience sample of 60 women divided into two groups: 30 participants with dysphonia caused by vocal fold nodules (study group - SG) and 30 participants without vocal complaints (control group - CG). All participants performed the high-pitched blowing vocal exercise for one, three, five, and seven minutes...
February 16, 2017: CoDAS
https://www.readbyqxmd.com/read/28225736/effects-of-long-term-musical-training-on-cortical-auditory-evoked-potentials
#8
Carolyn J Brown, Eun-Kyung Jeon, Virginia Driscoll, Bruna Mussoi, Shruti Balvalli Deshpande, Kate Gfeller, Paul J Abbas
OBJECTIVE: Evidence suggests that musicians, as a group, have superior frequency resolution abilities when compared with nonmusicians. It is possible to assess auditory discrimination using either behavioral or electrophysiologic methods. The purpose of this study was to determine if the acoustic change complex (ACC) is sensitive enough to reflect the differences in spectral processing exhibited by musicians and nonmusicians. DESIGN: Twenty individuals (10 musicians and 10 nonmusicians) participated in this study...
March 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28225735/evaluating-the-precision-of-auditory-sensory-memory-as-an-index-of-intrusion-in-tinnitus
#9
Doug J K Barrett, Michael Pilling
OBJECTIVES: The purpose of this study was to investigate the potential of measures of auditory short-term memory (ASTM) to provide a clinical measure of intrusion in tinnitus. DESIGN: Response functions for six normal listeners on a delayed pitch discrimination task were contrasted in three conditions designed to manipulate attention in the presence and absence of simulated tinnitus: (1) no-tinnitus, (2) ignore-tinnitus, and (3) attend-tinnitus. RESULTS: Delayed pitch discrimination functions were more variable in the presence of simulated tinnitus when listeners were asked to divide attention between the primary task and the amplitude of the tinnitus tone...
March 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28225709/the-relationship-between-trunk-rotation-upper-quarter-dynamic-stability-and-pitch-velocity
#10
Garrett S Bullock, Abigail C Schmitt, Patrick Chasse, Barrett A Little, Lee H Diehl, Robert J Butler
Understanding the relationship between upper quarter mobility, dynamic stability and pitching velocity may be beneficial in elucidating underlying factors that affect pitching performance. The purpose of this study was to investigate upper trunk rotation mobility and upper quarter dynamic stability and their correlation to pitch velocity in NCAA Division I collegiate pitchers. We hypothesized that collegiate pitchers with greater upper trunk rotation mobility and upper extremity dynamic stability would exhibit higher pitching velocity...
February 21, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28225092/controlled-propulsion-and-separation-of-helical-particles-at-the-nanoscale
#11
Maria Michiko T Alcanzare, Vaibhav Thakore, Santtu T T Ollila, Mikko Karttunen, Tapio Ala-Nissila
Controlling the motion of nano and microscale objects in a fluid environment is a key factor in designing optimized tiny machines that perform mechanical tasks such as transport of drugs or genetic material in cells, fluid mixing to accelerate chemical reactions, and cargo transport in microfluidic chips. Directed motion is made possible by the coupled translational and rotational motion of asymmetric particles. A current challenge in achieving directed and controlled motion at the nanoscale lies in overcoming random Brownian motion due to thermal fluctuations in the fluid...
February 22, 2017: Soft Matter
https://www.readbyqxmd.com/read/28225070/speech-specific-categorical-perception-deficit-in-autism-an-event-related-potential-study-of-lexical-tone-processing-in-mandarin-speaking-children
#12
Xiaoyue Wang, Suiping Wang, Yuebo Fan, Dan Huang, Yang Zhang
Recent studies reveal that tonal language speakers with autism have enhanced neural sensitivity to pitch changes in nonspeech stimuli but not to lexical tone contrasts in their native language. The present ERP study investigated whether the distinct pitch processing pattern for speech and nonspeech stimuli in autism was due to a speech-specific deficit in categorical perception of lexical tones. A passive oddball paradigm was adopted to examine two groups (16 in the autism group and 15 in the control group) of Chinese children's Mismatch Responses (MMRs) to equivalent pitch deviations representing within-category and between-category differences in speech and nonspeech contexts...
February 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28222772/prevalence-of-syphilis-among-female-sex-workers-and-their-clients-in-togo-in-2011
#13
Wemboo Afiwa Halatoko, Dadja Essoya Landoh, Bayaki Saka, Koffi Akolly, Yao Layibo, Issifou Yaya, Dodji Gbetoglo, Abiba Kere Banla, Palokinam Pitché
BACKGROUND: During the last ten years, a resurgence of syphilis has occurred in many countries worldwide, including Togo. Previous studies have shown a wide range of syphilis infection among the female sex workers (FSWs), from 1.5 to 42.1%. In Togo, Key populations, including FSWs, are rarely involved in the sentinel surveillance programs to determine the prevalence of HIV and syphilis. The aim of this study was to determine the prevalence of syphilis among female sex workers (FSWs) and their clients in Togo...
February 21, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28220760/focused-electron-beam-induced-deposition-of-copper-with-high-resolution-and-purity-from-aqueous-solutions
#14
Samaneh Esfandiarpour, Lindsay Boehme, J Todd Hastings
Electron-beam induced deposition of high-purity copper nanostructures is desirable for nanoscale rapid prototyping, interconnection of chemically synthesized structures, and integrated circuit editing. However, metalorganic, gas-phase precursors for copper introduce high levels of carbon contamination. Here we demonstrate electron beam induced deposition of high-purity copper nanostructures from aqueous solutions of copper sulfate. The addition of sulfuric acid eliminates oxygen contamination from the deposit and produces a deposit with ∼95 at% copper...
February 21, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28218699/gimbal-influence-on-the-stability-of-exterior-orientation-parameters-of-uav-acquired-images
#15
Mateo Gašparović, Luka Jurjević
In this paper, results from the analysis of the gimbal impact on the determination of the camera exterior orientation parameters of an Unmanned Aerial Vehicle (UAV) are presented and interpreted. Additionally, a new approach and methodology for testing the influence of gimbals on the exterior orientation parameters of UAV acquired images is presented. The main motive of this study is to examine the possibility of obtaining better geometry and favorable spatial bundles of rays of images in UAV photogrammetric surveying...
February 18, 2017: Sensors
https://www.readbyqxmd.com/read/28217553/effect-of-vestibular-stimulation-on-auditory-and-visual-reaction-time-in-relation-to-stress
#16
Archana Rajagopalan, Sai Sailesh Kumar, Joseph Kurien Mukkadan
The present study was undertaken to provide scientific evidence and for beneficial effects of vestibular stimulation for the management of stress-induced changes in auditory and visual reaction time (RT). A total of 240 healthy college students of the age group of 18-24 of either gender were a part of this research after obtaining written consent from them. RT for right and left response was measured for two auditory stimuli (low and high pitch) and visual stimuli (red and green) were recorded. A significant decrease in the visual RT for green light and red light was observed and stress-induced changes was effectively prevented followed by vestibular stimulation...
January 2017: Journal of Advanced Pharmaceutical Technology & Research
https://www.readbyqxmd.com/read/28216122/pitch-ranking-with-different-virtual-channel-configurations-in-electrical-hearing
#17
Monica Padilla, Natalia Stupak, David M Landsberger
Monopolar Virtual Channels (MPVCs) use current steering to increase the number of spectral channels provided to cochlear implant users beyond the physical number of electrodes. The current spread created with a current steered channel is similar to the spread found for monopolar stimulation, and this spread may be one of the bottlenecks for improved performance with an increased number of channels. Quadrupolar Virtual Channels (QPVCs) use current focusing in combination with steering in an attempt to increase the number of channels while reducing channel interaction...
February 16, 2017: Hearing Research
https://www.readbyqxmd.com/read/28213646/auditory-feedback-to-support-image-guided-medical-needle-placement
#18
David Black, Julian Hettig, Maria Luz, Christian Hansen, Ron Kikinis, Horst Hahn
PURPOSE: During medical needle placement using image-guided navigation systems, the clinician must concentrate on a screen. To reduce the clinician's visual reliance on the screen, this work proposes an auditory feedback method as a stand-alone method or to support visual feedback for placing the navigated medical instrument, in this case a needle. METHODS: An auditory synthesis model using pitch comparison and stereo panning parameter mapping was developed to augment or replace visual feedback for navigated needle placement...
February 17, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28208389/effect-of-curvature-on-cholesteric-liquid-crystals-in-toroidal-geometries
#19
Ana R Fialho, Nelson R Bernardino, Nuno M Silvestre, Margarida M Telo da Gama
The confinement of liquid crystals inside curved geometries leads to exotic structures, with applications ranging from biosensors to optical switches and privacy windows. Here we study how curvature affects the alignment of a cholesteric liquid crystal. We model the system on the mesoscale using the Landau-de Gennes model. Our study was performed in three stages, analyzing different curved geometries from cylindrical walls and pores, to toroidal domains, in order to isolate the curvature effects. Our results show that the stresses introduced by the curvature influence the orientation of the liquid crystal molecules, and cause distortions in the natural periodicity of the cholesteric that depend on the radius of curvature, on the pitch, and on the dimensions of the system...
January 2017: Physical Review. E
https://www.readbyqxmd.com/read/28208148/local-and-global-cues-in-the-prosodic-realization-of-broad-and-narrow-focus-in-bulgarian
#20
Bistra Andreeva, William John Barry, Jacques Koreman
In this study, local and global prosodic cues for information structure are examined in the elicited production of six Bulgarian sentences. The sentences were produced in response to different questions, devised to prompt different focus realizations (broad focus and non-contrastive and contrastive narrow focus). Results show that speakers consistently differentiate broad and narrow focus by means of both local and global acoustic cues, by producing different pitch accent types on the nuclear syllable and reducing the 'phonetic strength' of the default pre-nuclear accent in the narrow focus condition...
2016: Phonetica
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