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Noa Givon Shaham, Shelley Sternberg, Debbie Rand
BACKGROUND: The use of touchscreen tablets has become common in healthcare. This technology has the potential to be used as a motivational tool for cognitive training. Age-related decline in executive functioning (EF) and dexterity may lead to poor performance using tablet applications (apps), but the impact on performance of app-based puzzles has not been studied. OBJECTIVES: (1) To characterize and compare the experience performance of playing tablet apps of older and younger adults, (2) To determine if EF and dexterity contribute to performance of app-based puzzles...
August 2018: Games for Health
R López-Blanco, J Benito-León, S Llamas-Velasco, M D Del Castillo, J I Serrano, E Rocon, J P Romero, M A Velasco
INTRODUCTION: Smartphones use in biomedical research is becoming more prevalent in different clinical settings. We performed a pilot study to obtain information on smartphone use by patients with essential tremor (ET) and healthy controls, with a view to determining whether performance of touchscreen tasks is different between these groups and describing touchscreen interaction factors. METHOD: A total of 31 patients with ET and 40 sex- and age-matched healthy controls completed a descriptive questionnaire about the use of smartphones...
August 10, 2018: Neurología: Publicación Oficial de la Sociedad Española de Neurología
Samuel J Levulis, Patricia R DeLucia, So Young Kim
OBJECTIVE: We evaluated three interface input methods for a simulated manned-unmanned teaming (MUM-T) supervisory control system designed for Air Mission Commanders (AMCs) in Black Hawk helicopters. BACKGROUND: A key component of the U.S. Army's vision for unmanned aerial vehicles (UAVs) is to integrate UAVs into manned missions, called MUM-T (Department of Defense, 2010). One application of MUM-T is to provide the AMC of a team of Black Hawk helicopters control of multiple UAVs, offering advanced reconnaissance and real-time intelligence of flight routes and landing zones...
July 31, 2018: Human Factors
Youngbo Suh, Thomas K Ferris
OBJECTIVE: This study investigated the impact of in-vehicle interface characteristics on drivers' multitasking performance measures relating to visual attention management, concerning the distraction potential of in-vehicle touchscreens. BACKGROUND: Compared with physical controls providing drivers with naturalistic nonvisual cues, in-vehicle touchscreen interaction relies on vision to a greater extent, leading to more time with eyes off the road and concerns for safety...
July 30, 2018: Human Factors
Tingting Ren, Mingqing Yang, Kaikai Wang, Yue Zhang, Junhui He
Human health and industrial instruments have been suffering from bacterial colonization on the surface of materials for a long time. Recently, antibacterial coatings are regarded as the new strategy to resist bacterial pathogens. In this work, novel highly transparent and superhydrophobic coatings with extremely low bacterial adhesion and bactericidal performance were prepared by spray-coating hydrophobic silica sol and CuO nanoparticles. The coated glass showed high transmittance in 300-2500 nm with a maximum value of 96...
August 1, 2018: ACS Applied Materials & Interfaces
Sergio Cervera-Torres, Susana Ruiz Fernández, Martin Lachmair, Peter Gerjets
Embodied cognition research suggests that bodily experiences might ground mental representations of emotional valence in the vertical dimension of space (i.e., positive is up and negative is down). Accordingly, recent studies show that upward and downward arm movements may also influence the evaluation of valence-laden stimuli, suggesting that upward (downwards) movements lead to more positive (negative) evaluations. Interestingly, these studies typically did not investigate paradigms that require a direct hand interaction with the stimuli...
2018: PloS One
Mei Ma, Xiao Liang, Shiqiang Cheng, Lu Zhang, Bolun Cheng, Jian Yang, Miao Ding, Yan Zhao, Ping Li, Yanan Du, Li Liu, Yan Wen, Awen He, QianRui Fan, Xiong Guo, Feng Zhang
OBJECTIVE: To explore the associations between chemical elements and attention deficit hyperactivity disorder (ADHD)/intelligence quotient (IQ). METHODS: We applied elements related gene set enrichment analysis (ERGSEA) to explore the relationships between elements and ADHD/IQ. The GWAS dataset of ADHD was derived from the Psychiatric Genomics Consortium, involving 55,374 individuals. The GWAS dataset of IQ was derived from UK Biobank web-based measure (n = 17,862), UK Biobank touchscreen measure (n = 36,257), CHIC consortium (n = 12,441) and five additional cohorts (n = 11,748)...
November 1, 2018: Behavioural Brain Research
Jonathan M Hailwood, Christopher J Heath, Trevor W Robbins, Lisa M Saksida, Timothy J Bussey
RATIONALE: Across species, effort-related motivation can be assessed by testing behaviour under a progressive ratio (PR) schedule of reinforcement. However, to date, PR tasks for rodents have been available using traditional operant response systems only. OBJECTIVES: Touchscreen operant response systems allow the assessment of behaviour in laboratory rodents, using tasks that share high face validity with the computerised assessments used in humans. Here, we sought to optimise a rat touchscreen variant of PR and validate it by assessing the effects of a number of manipulations known to affect PR performance in non-touchscreen paradigms...
July 14, 2018: Psychopharmacology
Delia Waldenmaier, Eva Zschornack, Lucas Kalt, Andreas Buhr, Stefan Pleus, Cornelia Haug, Guido Freckmann
INTRODUCTION: A new insulin pump system was tested under everyday conditions for user evaluation and safety assessment prior to its launch in Europe. This insulin pump is focused on easy handling and uses prefilled cartridges. METHODS: The pump system was used by 35 adult subjects with type 1 diabetes, experienced in insulin pump therapy, under everyday conditions for approximately one month each. All subjects rated various aspects of the system after home use; technical issues and safety parameters were assessed throughout the study...
July 1, 2018: Journal of Diabetes Science and Technology
Max Greisen, Caroline Hornung, Tanja G Baudson, Claire Muller, Romain Martin, Christine Schiltz
While numerical skills are fundamental in modern societies, some estimated 5-7% of children suffer from mathematical learning difficulties (MLD) that need to be assessed early to ensure successful remediation. Universally employable diagnostic tools are yet lacking, as current test batteries for basic mathematics assessment are based on verbal instructions. However, prior research has shown that performance in mathematics assessment is often dependent on the testee's proficiency in the language of instruction which might lead to unfair bias in test scores...
2018: Frontiers in Psychology
Muhammad Khurram Saleem, Cetin Yilmaz, Cagatay Basdogan
To render haptic cues on a touchscreen by friction modulation, it is important to understand how human perceive a change in friction. In this study, we investigate the relations between perceived change in friction on an ultrasonically actuated touchscreen and parameters involved in contact between finger and its surface. We first estimate the perceptual thresholds to detect rising and falling friction while finger is sliding on the touch surface. Then, we conduct magnitude estimation experiments and investigate the effect of finger sliding velocity, normal force, and transition time on the perceived magnitude of change in friction...
April 27, 2018: IEEE Transactions on Haptics
Erin Koch, Famya Baig, Qasim Zaidi
Pose estimation of objects in real scenes is critically important for biological and machine visual systems, but little is known of how humans infer 3D poses from 2D retinal images. We show unexpectedly remarkable agreement in the 3D poses different observers estimate from pictures. We further show that all observers apply the same inferential rule from all viewpoints, utilizing the geometrically derived back-transform from retinal images to actual 3D scenes. Pose estimations are altered by a fronto-parallel bias, and by image distortions that appear to tilt the ground plane...
July 24, 2018: Proceedings of the National Academy of Sciences of the United States of America
Matteo Bertucco, Terence D Sanger
Excess involuntary movements and slowness of movement in children with dyskinetic cerebral palsy often result in the inability to properly interact with augmentative and alternative communication (AAC) devices. This significantly limits communication. It is, therefore, essential to know how to adjust the device layout in order to maximize each child's rate of communication. The aim of this paper was to develop a mathematical model to estimate the information rate in children with dyskinetic cerebral palsy and to determine the optimal AAC layout for a touchscreen tablet that results in enhanced speed of communication...
July 2018: IEEE Transactions on Neural Systems and Rehabilitation Engineering
Alecia Moser, Sarah Olsen, Sylvia N Rusnak, Rachel Barr, Peter Gerhardstein
Multiple factors influence imitation during toddlerhood, including task complexity, social contingency, and individual differences. We conducted a secondary data analysis of individual differences in self-generated labelling using data collected from a complex puzzle imitation task with 355 2- to 3-year-olds. This analysis indicated that toddlers' ability to label the completed puzzle (fish or boat) was associated with better imitation performance. Labelling occurs during social interactions; therefore, our second analysis tested how labelling differed as a function of the level of social scaffolding in each condition...
July 7, 2018: British Journal of Developmental Psychology
Genesis D Arizmendi, Mary Alt, Shelley Gray, Tiffany P Hogan, Samuel Green, Nelson Cowan
Purpose: The purpose of this study was to examine differences in performance between monolingual and Spanish-English bilingual second graders (aged 7-9 years old) on executive function tasks assessing inhibition, shifting, and updating to contribute more evidence to the ongoing debate about a potential bilingual executive function advantage. Method: One hundred sixty-seven monolingual English-speaking children and 80 Spanish-English bilingual children were administered 7 tasks on a touchscreen computer in the context of a pirate game...
July 5, 2018: Language, Speech, and Hearing Services in Schools
Priscilla P Grunauer, Justin W Walguarnery
Digital devices, including tablet computers and other touchscreens, can potentially serve as flexible and convenient means for providing behavioral enrichment activities to captive primates. Despite increased interest in incorporating technology into enrichment programs, no direct quantitative comparison has previously been made between the effectiveness of typical tactile enrichment activities and enrichment activities on digital devices. One way in which these activities differ is in the degree of controllability afforded the animals in interacting with the enrichment objects, since digital devices will be limiting to varying degrees based on the particulars of software and the interface format...
July 5, 2018: Zoo Biology
Shenandoah Robinson, Jesse L Winer, Lindsay A S Chan, Akosua Y Oppong, Tracylyn R Yellowhair, Jessie R Maxwell, Nicholas Andrews, Yirong Yang, Laurel O Sillerud, William P Meehan, Rebekah Mannix, Jonathan L Brigman, Lauren L Jantzie
Survivors of infant traumatic brain injury (TBI) are prone to chronic neurological deficits that impose lifelong individual and societal burdens. Translation of novel interventions to clinical trials is hampered in part by the lack of truly representative preclinical tests of cognition and corresponding biomarkers of functional outcomes. To address this gap, the ability of a high-dose, extended, post-injury regimen of erythropoietin (EPO, 3000U/kg/dose × 6d) to prevent chronic cognitive and imaging deficits was tested in a postnatal day 12 (P12) controlled-cortical impact (CCI) model in rats, using touchscreen operant chambers and regional analysis of diffusion tensor imaging (DTI)...
2018: Frontiers in Neurology
Szu-Ping Lee, Ya-Ting Hsu, Betina Bair, Marissa Toberman, Lung-Chang Chien
[Purpose] To investigate the prevalence of neck and shoulder symptoms during the use of tablet computer, and to identify the risk factors associated with these symptoms. [Subjects and Methods] A cross-sectional survey was conducted to study tablet computer usage, posture during use, and neck and shoulder symptoms in 412 participants in a school setting. Significant risk factors for musculoskeletal symptoms during tablet computer use were identified. [Results] Overall prevalence of musculoskeletal symptoms during tablet computer use was 67...
June 2018: Journal of Physical Therapy Science
Lydia M Hopper, Crystal L Egelkamp, Mason Fidino, Stephen R Ross
Typically, animals' food preferences are tested manually, which can be both time-consuming and vulnerable to experimenter biases. Given the utility of ascertaining animals' food preferences for research and husbandry protocols, developing a quick, reliable, and flexible paradigm would be valuable for expediting many research protocols. Therefore, we evaluated the efficacy of using a touchscreen interface to test nonhuman primates' food preferences and valuations, adapting previously validated manual methods...
June 8, 2018: Behavior Research Methods
Annika H Runegaard, Andreas T Sørensen, Ciarán M Fitzpatrick, Søren H Jørgensen, Anders V Petersen, Nikolaj W Hansen, Pia Weikop, Jesper T Andreasen, Jens D Mikkelsen, Jean-Francois Perrier, David Woldbye, Mattias Rickhag, Gitta Wortwein, Ulrik Gether
Dopamine plays a key role in the cellular and behavioral responses to drugs of abuse, but the implication of metabotropic regulatory input to dopaminergic neurons on acute drug effects and subsequent drug-related behavior remains unclear. Here, we used chemogenetics [Designer Receptors Exclusively Activated by Designer Drugs (DREADDs)] to modulate dopamine signaling and activity before cocaine administration in mice. We show that chemogenetic inhibition of dopaminergic ventral tegmental area (VTA) neurons differentially affects locomotor and reward-related behavioral responses to cocaine...
May 2018: ENeuro
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