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Items from 1 to 20 out of 1,549 results

article

The Effects of the StartReact on Reaction Time, Rate of Force Development, and Muscle Activity in Biceps Brachii

Simon Walker, Meghan Tanel, Sakari Vekki, Dawson J. Kidgell, more

Scandinavian Journal of Medicine & Science in Sports > 34 > 9 > n/a - n/a

The StartReact test, increasingly popular for assessing cortico‐reticular functioning, is a valid method to influence the firing of reticulospinal tract neurons noninvasively. However, there remains limited evidence on how different stimuli employed in the StartReact test impact motor output in humans. The present study tested elbow flexor responses of 33 adults (aged 26–48 years) to visual stimuli...

article

How do visual, auditory and motor dual‐tasking each affect swallowing and chewing function?

Sena Nur Begen, Selen Serel Arslan

Journal of Oral Rehabilitation > 51 > 8 > 1579 - 1588

Background It can be challenging to perform a second task at the same time as swallowing. Objective(s) The study aimed to investigate the effect of visual, auditory and motor dual‐tasking on swallowing and chewing function in healthy young adults. Method Right‐handed healthy adults without any psychological and cognitive problems were included in the study. Swallowing was evaluated based on the...

article

Associations between the resting EEG aperiodic slope and broad domains of cognitive ability

Matthew J. Euler, Julia V. Vehar, Jasmin E. Guevara, Allie R. Geiger, more

Psychophysiology > 61 > 6 > n/a - n/a

Recent studies suggest that the EEG aperiodic exponent (often represented as a slope in log–log space) is sensitive to individual differences in momentary cognitive skills such as selective attention and information processing speed. However, findings are mixed, and most of the studies have focused on just a narrow range of cognitive domains. This study used an archival dataset to help clarify associations...

article

Basal forebrain parvalbumin neurons modulate vigilant attention and rescue deficits produced by sleep deprivation

Felipe L. Schiffino, James M. McNally, Eden B. Maness, James T. McKenna, more

Journal of Sleep Research > 33 > 3 > n/a - n/a

Attention is impaired in many neuropsychiatric disorders, as well as by sleep disruption, leading to decreased workplace productivity and increased risk of accidents. Thus, understanding the neural substrates is important. Here we test the hypothesis that basal forebrain neurons that contain the calcium‐binding protein parvalbumin modulate vigilant attention in mice. Furthermore, we test whether increasing...

article

The neuromodulatory role of dopamine in improved reaction time by acute cardiovascular exercise

Soichi Ando, Toshihiko Fujimoto, Mizuki Sudo, Shoichi Watanuki, more

The Journal of Physiology > 602 > 3 > 461 - 484

Abstract Acute cardiovascular physical exercise improves cognitive performance, as evidenced by a reduction in reaction time (RT). However, the mechanistic understanding of how this occurs is elusive and has not been rigorously investigated in humans. Here, using positron emission tomography (PET) with [¹¹C]raclopride, in a multi‐experiment study we investigated whether acute exercise releases endogenous...

article

I₂/CAN as a Mild and Efficient Reagent for Oxidative Csp³‐Csp² Cleavage of 3,3′‐Bis‐7‐azaindolylmethane: A Rapid One‐Pot Access to 3‐Formyl and 3‐Iodo‐7‐azaindoles

Pavithra Elavarasan, Sathananthan Kannadasan, Ponnusamy Shanmugam

European Journal of Organic Chemistry > 27 > 4 > n/a - n/a

The combination of I₂/CAN has emerged as a mild and powerful reagent for the oxidative Csp³‐Csp² cleavage of 3,3′‐bis‐7‐azaindolylmethane to provide a quantitative combined yield of 3‐formyl and 3‐iodo‐7‐azaindole in a one‐pot reaction at RT. A plausible mechanism and characterization, including XRD, has been described. The synthetic transformations of title compounds were explored by reduction, Click,...

article

Effects of lip and eye color on the emotion categorization of facial expressions

Yan Zuo, Yasuhiro Kawabata

Color Research & Application > 49 > 1 > 188 - 198

This study examined whether people's ability to recognize facial expressions is affected by manipulating the color of their lips or eyes. Participants comprised 100 Chinese adolescents (mean age = 13.79 years, SD = 1.06). The stimuli consisted of happy, neutral, and sad facial expressions, which were manipulated to have different lip or eye colors. Participants reacted to the images by indicating...

article

P‐13: Picture Quality of In‐Plane Switching Liquid Crystal Displays with Deep Black

Hyeok-Jun Kwon, Kyongho Lim, Hyun-Jin Park, Won-Taeck Kim, more

SID Symposium Digest of Technical Papers > 54 > 1 > 1833 - 1836

In‐Plane Switching (IPS) liquid crystal display (LCD) is one of leading technologies in display industrials because of its superior picture quality. This paper provides picture quality of high contrast IPS LCD in terms of color contrast, dynamic range, color expression and PQ‐EOTF accuracy in HDR compared to conventional IPS LCD. Furthermore, to evaluate its performance as a gaming display, reaction...

article

Non‐paretic leg movements can facilitate cortical drive to the paretic leg in individuals post stroke with severe motor impairment: Implications for motor priming

Hyosok Lim, Sangeetha Madhavan

European Journal of Neuroscience > 58 > 3 > 2853 - 2867

Cross‐education, a phenomenon where unilateral strength (or skill) training enhances strength (or skill) in the contralateral untrained limb, has been well studied in able‐bodied individuals. Cross‐education effect accompanies bilateral changes of corticomotor activity in the motor cortex (M1). Recent reports demonstrated greater cross‐education effect in stroke survivors compared to healthy individuals,...

article

Cardiac timing and threatening stimuli influence response inhibition and ex‐Gaussian parameters of reaction time in a Go/No‐go task

Xiao Yang, Derek P. Spangler, J. Richard Jennings, Bruce H. Friedman

Psychophysiology > 60 > 6 > n/a - n/a

Sensorimotor responses vary as a function of the cardiac cycle phase. These effects, known as cardiac cycle time effects, have been explained by the inhibition of cardiac afferent signals on information processing. However, the validity of cardiac cycle time effects is challenged by mixed findings. Factors such as current information processing and affective context may modulate cardiac cycle time...

article

How Exergaming with Virtual Reality Enhances Specific Cognitive and Visuo‐Motor Abilities: An Explorative Study

Sidney Grosprêtre, Philémon Marcel‐Millet, Pauline Eon, Bettina Wollesen

Cognitive Science > 47 > 4 > n/a - n/a

Virtual reality (VR) is the computer simulation of a three‐dimensional environment that a person can interact with using special electronic equipment, such as a headset with an integrated display. Often coupled with VR, exergames are video games that involve physical exercise. Little is known regarding the chronic effects of exergaming through VR chon cognitive functions. Eleven young participants...

article

Bateria testów abilitest – własności psychometryczne narzędzi: badania wstępne

Sylwia Sumińska, Łukasz Kapica, Grzegorz Szczepański, Aleksandra Stachura-Krzyształowicz

Medycyna Pracy > 2023 > 74 > 2 > 103-118

Wstęp Sprawność poznawcza jest kluczowa dla wielu obszarów działania człowieka. Wpływa na efektywność pracowników i bezpieczeństwo pracy. Ważnym elementem profilaktyki wypadków przy pracy jest odpowiedni dobór zawodowy, który polega na sprawdzeniu cech kandydatów na dane stanowisko pracy, i w tym celu przeprowadza się diagnozę psychologiczną. Celem badania było opracowanie narzędzi do diagnozy poznawczej,...

article

Driver’s distraction and its potential influence on the extension of reaction time

Sławomir Tarkowski, Jacek Caban, Mariusz Dzieńkowski, Aleksander Nieoczym, more

Archiwum Motoryzacji > 2022 > Vol. 98, nr 4 > 65--78

The driver’s reaction time is one of the most important parameters for the road pre-accident analysis. There are known the results of tests, in which the value of this parameter was determined in expected and unexpected road situations. But in some cases, this time may be longer e.g. in situations in which the driver’s attention may be distracted by keeping observations other than the area, in front...

article

Effects of tDCS applied over the left IFG and pSTG language areas on verb recognition task performance

Guadalupe Nathzidy Rivera‐Urbina, María Franshely Martínez‐Castañeda, Ana María Núñez‐Gómez, Andrés Molero‐Chamizo, more

Psychophysiology > 59 > 12 > n/a - n/a

Knowledge about the relevance of the left inferior frontal gyrus (lIFG) and the left posterior superior temporal gyrus (lpSTG) in visual recognition of word categories is limited at present. tDCS is a non‐invasive brain stimulation method that alters cortical activity and excitability, and thus might be a useful tool for delineating the specific impact of both areas on word recognition. The objective...

article

Analiza działania i badanie czasu reakcji układu hamulcowego motocykla

Kamil Krakowiak, Andrzej Dębowski

Biuletyn Wojskowej Akademii Technicznej > 2022 > Vol. 71, nr 3 > 93--111

W pracy przedstawiono opis oraz metodykę badań układów hamulcowych w pojazdach jednośladowych. Zaprezentowano dokumentację oraz dyrektywę, na bazie której przeprowadzane są badania układów hamulcowych motocykli. Na tej podstawie zapisano definicje trzech głównych rodzajów hamulców poddawanych badaniom. Opisano dwa główne typy badań przeprowadzanych na podstawie Dyrektywy Rady 93/14/EWG z dnia 5 kwietnia...

article

Detecting concealed information using functional near‐infrared spectroscopy (fNIRS) combined with skin conductance, heart rate, and behavioral measures

Di Wang, Chongxiang Wang, Xingyu Yi, Liyang Sai, more

Psychophysiology > 59 > 8 > n/a - n/a

In this study, brain imaging data from functional near‐infrared spectroscopy (fNIRS) associated with skin conductance response (SCR), heart rate (HR), and reaction time (RT) were combined to determine if the combination of these indicators could improve the efficiency of deception detection in concealed information test (CIT). During the CIT, participants were presented with a series of names and...

article

Submental transcutaneous electrical stimulation can impact the timing of laryngeal vestibule closure

Ali Barikroo, Mitchell T. McLean

Journal of Oral Rehabilitation > 49 > 8 > 817 - 822

Background Laryngeal vestibule closure (LVC) is one of the critical airway protection mechanisms during swallowing. LVC timing impairments during swallowing are among the common causes of airway invasion in patients with dysphagia. Objectives To understand whether using submental transcutaneous electrical stimulation (TES) with varying pulse durations can impact the LVC reaction time (LVCrt) and...

article

68‐1: Evaluation for Reaction Time of Gaming Displays

Yan Jin, Seungwon Yoo, Jaehong Kim, Hee Eun Lee, more

SID Symposium Digest of Technical Papers > 53 > 1 > 907 - 909

Display technology plays a significant role in gaming and two different types of display panel technologies available are OLED and LCD when choosing a gaming monitor. In general, interest in physical specifications such as refresh rate, contrast ratio, response time and input lag in gaming displays is high. In this article, we studied the reaction time between two different gaming displays with respect...

article

The role of melanopsin photoreception on visual attention linked pupil responses

Subodh Gnyawali, Beatrix Feigl, Prakash Adhikari, Andrew J. Zele

European Journal of Neuroscience > 55 > 8 > 1986 - 2002

A decision during a visual task is marked by a task‐evoked pupil dilation (TEPD) that is linked to the global cortical arousal state. Melanopsin expressing intrinsically photosensitive retinal ganglion cells (ipRGCs) form the afferent pathway for this pupil response. Melanopsin activation also influences mood and arousal and increases activity in decision‐making brain areas that receive direct ipRGC...

article

Effects of kiai on jumping performance and striking reaction time in Karate athletes

Julio Cesar Carvalho Rodrigues, Eduardo Macedo Penna, Antenor Barbosa Calandrini de Azevedo, Deivison Soares Meninea, more

Ido Movement for Culture. Journal of Martial Arts Anthropology > 2022 > 22 > 1 > 27-35

Background. Kiai is a breathing technique, usually related to a short scream that aims to focus the martial artist’s energy in a given attack. However, the influence of kiai in the technical and physical aspects related to striking performance needs more evidence. Thus, the purpose of this study was to investigate the effect of kiai in the performance of vertical jumps, and reaction time (RT) for...

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REACTION TIME (1,549)
ATTENTION (128)
HUMAN (50)
COGNITION (46)
MOVEMENT TIME (35)
SCHIZOPHRENIA (34)
INHIBITION (31)
AGING (29)
CZAS REAKCJI (29)
FMRI (28)
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STARTLE (20)
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RESPONSE TIME (15)
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MOVEMENT (10)
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POSTURE (10)
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VISION (10)
VISUAL DISCRIMINATION (10)
WASTEWATER TREATMENT (10)
AGE (9)
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SLEEP DEPRIVATION (9)
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[PSYCHINFO CLASSIFICATION CODES] 2340 (9)
[PSYCINFO CLASSIFICATION CODES] 2330 (9)
AGEING (8)
ANTISACCADE (8)
DEPRESSION (8)
DIFFUSION MODEL (8)
DIVIDED ATTENTION (8)
IMPULSIVITY (8)
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Search results

The Effects of the StartReact on Reaction Time, Rate of Force Development, and Muscle Activity in Biceps Brachii

How do visual, auditory and motor dual‐tasking each affect swallowing and chewing function?

Associations between the resting EEG aperiodic slope and broad domains of cognitive ability

Basal forebrain parvalbumin neurons modulate vigilant attention and rescue deficits produced by sleep deprivation

The neuromodulatory role of dopamine in improved reaction time by acute cardiovascular exercise

I₂/CAN as a Mild and Efficient Reagent for Oxidative Csp³‐Csp² Cleavage of 3,3′‐Bis‐7‐azaindolylmethane: A Rapid One‐Pot Access to 3‐Formyl and 3‐Iodo‐7‐azaindoles

Effects of lip and eye color on the emotion categorization of facial expressions

P‐13: Picture Quality of In‐Plane Switching Liquid Crystal Displays with Deep Black

Non‐paretic leg movements can facilitate cortical drive to the paretic leg in individuals post stroke with severe motor impairment: Implications for motor priming

Cardiac timing and threatening stimuli influence response inhibition and ex‐Gaussian parameters of reaction time in a Go/No‐go task

How Exergaming with Virtual Reality Enhances Specific Cognitive and Visuo‐Motor Abilities: An Explorative Study

Bateria testów abilitest – własności psychometryczne narzędzi: badania wstępne

Driver’s distraction and its potential influence on the extension of reaction time

Effects of tDCS applied over the left IFG and pSTG language areas on verb recognition task performance

Analiza działania i badanie czasu reakcji układu hamulcowego motocykla

Detecting concealed information using functional near‐infrared spectroscopy (fNIRS) combined with skin conductance, heart rate, and behavioral measures

Submental transcutaneous electrical stimulation can impact the timing of laryngeal vestibule closure

68‐1: Evaluation for Reaction Time of Gaming Displays

The role of melanopsin photoreception on visual attention linked pupil responses

Effects of kiai on jumping performance and striking reaction time in Karate athletes

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