The purpose of this study was to verify the influence of contextual perception in sports on performance in reaction agility to a specific and non-specific stimulus on a sample of handball players. The object of the research was eleven players of the junior handball team playing in the top league (age: 16.73 years; decimal age 16.46 years). Visual signaling and video projection. and a modified Y-test of reaction agility were used. In this study. two goals were set: a) to compare the performance level in the Y agility test with respect to a simple non-specific and a complex specific visual stimulus in the form of filmed scenes of the opponent's attacking actions. which simulated real situations in performance handball; b) find out the possible relationship between performance in the agility test and reaction time. decision-making competence. anxiety and overload and involvement in decision-making and performance with regard to the nature of the stimulus. A questionnaire (CETD) was implemented in the sample to assess the decision-making style of athletes in a specific area.

The advent of cryo-electron microscopy (cryo-EM) and cryo-electron tomography (cryo-ET), coupled with computational modeling, has enabled the creation of integrative 3D models of viruses, bacteria, and cellular organelles. These models, composed of thousands of macromolecules and billions of atoms, have historically posed significant challenges for manipulation and visualization without specialized molecular graphics tools and hardware. With the recent advancements in GPU rendering power and web browser capabilities, it is now feasible to render interactively large molecular scenes directly on the web. In this work, we introduce Mesoscale Explorer, a web application built using the Mol* framework, dedicated to the visualization of large-scale molecular models ranging from viruses to cell organelles. Mesoscale Explorer provides unprecedented access and insight into the molecular fabric of life, enhancing perception, streamlining exploration, and simplifying visualization of diverse data types, showcasing the intricate details of these models with unparalleled clarity.

• MeSH
• elektronová kryomikroskopie * metody   MeSH
• molekulární modely * MeSH
• software * MeSH
• viry chemie   ultrastruktura   MeSH
• Publikační typ
• časopisecké články MeSH

BACKGROUND: Maintaining mobility is fundamental to active aging, allowing older adults to lead dynamic and independent lives. The perception of mobility among older adults significantly impacts their overall well-being and quality of life. Given the aging population, mobility has become an increasingly pressing issue. AIM: This study focused on the perception of urban neighborhoods, including considerations of urban tissue (crossings and sidewalk maintenance), urban scenes (benches and traffic), and safety (fears and street lighting quality). We investigated the differences in the perception of the surroundings of residences by urban and rural seniors concerning their demographic and social characteristics and environmental determinants. METHODS: A quantitative study design utilizing a questionnaire survey was employed. Data were collected mainly through face-to-face interviews in the field (PAPI) and via an online questionnaire (CAWI). The final sample comprised 525 participants. Hypotheses regarding the influence of gender, age, social status, level of physical activity, degree of urbanization, and region on environmental perception were tested using ordinal regression. RESULTS: The hypothesis regarding the dependence of the perception of the surroundings on the level of urbanization was confirmed; that regarding the dependence of the perception of the residence surroundings on seniors' age was not confirmed. The other hypotheses were partially confirmed. For the seven investigated environmental attributes, gender was significant in two cases, social status and physical activity in three cases, and region in four cases. CONCLUSION: While most studies have focused on urban settings, this study highlights the situation in rural municipalities. Substantially worse pedestrian conditions in availability of pedestrian crossings, benches, and lighting were recognized in rural municipalities versus cities. Understanding the complexity of mobility and the spatial locations relevant for older persons concerning potential barriers and facilitators for mobility aids in planning and adapting neighborhood environments to promote active and healthy aging in place.

• Publikační typ
• časopisecké články MeSH

• MeSH
• hodnocení výsledků pacienta MeSH
• lidé MeSH
• percepce bolesti fyziologie   MeSH
• rehabilitace * metody   přístrojové vybavení   MeSH
• virtuální realita * MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• novinové články MeSH

INTRODUCTION: Individuals who visit nightclubs and electronic dance music (EDM) festivals tend to use psychoactive substances, often multiple substances, in this setting and are at risk of serious negative health effects. This paper aims to explore respondents’ experiences and perceptions in order to have a better understanding of patterns and motives related to psychoactive substance use and high-risk behaviours in EDM event attendees. METHODS: In-depth and focus group interviews with 30 EDM event attendees who reported psychoactive substance use at nightlife events. The data was analysed using the Nvivo-v.10 software. RESULTS: Mixing multiple substances to get the desired effects was common. Ecstasy was often combined with Jager (alcohol). Drug use in nightlife settings occurred in a group of friends and was perceived as an essential part of having a good time. Most participants reported that they did not use drugs outside nightlife settings. The dangerous synthetic hallucinogen NBOMe was still on the scene. The respondents had a very low level of knowledge about, and perception of, the risks associated with drug consumption. Knowledge about risk minimisation strategies was very low or non-existent. CONCLUSIONS: Polydrug use and a lack of perceived harmful effects put drug-using nightlife attendees at increased risk of negative health consequences. Future research should focus on identifying strategies to raise the awareness of people who use drugs in nightlife settings and encourage them to employ health protection strategies. Using the social network infrastructure can be thought of as one potentially beneficial approach.

Visuospatial perspective-taking (VPT) is a process of imagining what can be seen and how a scene looks from a location and orientation in space that differs from one's own. It comprises two levels that are underpinned by distinct neurocognitive processes. Level-2 VPT is often studied in relation to two other cognitive phenomena, object mental rotation (oMR) and theory of mind (ToM). With the aim to describe the broad picture of neurocognitive processes underlying level-2 VPT, here we give an overview of the recent behavioral and neuroscientific findings of level-2 VPT. We discuss its relation to level-1 VPT, which is also referred to as perspective-tracking, and the neighboring topics, oMR and ToM. Neuroscientific research shows that level-2 VPT is a diverse cognitive process, encompassing functionally distinct neural circuits. It shares brain substrates with oMR, especially those parietal brain areas that are specialized in spatial reasoning. However, compared to oMR, level-2 VPT involves additional activations in brain structures that are typically involved in ToM tasks and deal with self/other distinctions. In addition, level-2 VPT has been suggested to engage brain areas coding for internal representations of the body. Thus, the neurocognitive model underpinning level-2 VPT can be understood as a combination of visuospatial processing with social cognition and body schema representations.

• MeSH
• imaginace fyziologie   MeSH
• lidé MeSH
• mozková kůra fyziologie   MeSH
• teorie mysli fyziologie   MeSH
• vnímání prostoru fyziologie   MeSH
• zraková percepce fyziologie   MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• přehledy MeSH

Previous research on cross-cultural differences in visual attention has been inconclusive. Some studies have suggested the existence of systematic differences in global and local attention and context sensitivity, while others have produced negative or mixed results. The objective in this study was to examine the similarities and differences in holistic and analytic cognitive styles in a sample of Czech and Taiwanese university students. Two cognitive tasks were conducted: a Compound Figures Test and a free-viewing scene perception task which manipulated several focal objects and measured eye-movement patterns. An analysis of the reaction times in the Compound Figures Test showed no clear differences between either sample. An analysis of eye-movement metrics showed certain differences between the samples. While Czechs tended to focus relatively more on the focal objects measured by the number of fixations, the Taiwanese subjects spent more time fixating on the background. The results were consistent for scenes with one or two focal objects. The results of a correlation analysis of both tasks showed that they were unrelated. These results showed certain differences between the samples in visual perception but were not as systematic as the theory of holistic and analytic cognitive styles would suggest. An alternative model of cross-cultural differences in cognition and perception is discussed.

• MeSH
• Asijci MeSH
• běloši MeSH
• kognice fyziologie   MeSH
• lidé MeSH
• mladý dospělý MeSH
• oční fixace fyziologie   MeSH
• pohyby očí fyziologie   MeSH
• pozornost fyziologie   MeSH
• reakční čas fyziologie   MeSH
• srovnání kultur MeSH
• studenti MeSH
• univerzity MeSH
• zrak fyziologie   MeSH
• zraková percepce fyziologie   MeSH
• Check Tag
• lidé MeSH
• mladý dospělý MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• Geografické názvy
• Česká republika MeSH
• Taiwan MeSH

Human perception and cognition are based predominantly on visual information processing. Much of the information regarding neuronal correlates of visual processing has been derived from functional imaging studies, which have identified a variety of brain areas contributing to visual analysis, recognition, and processing of objects and scenes. However, only two of these areas, namely the parahippocampal place area (PPA) and the lateral occipital complex (LOC), were verified and further characterized by intracranial electroencephalogram (iEEG). iEEG is a unique measurement technique that samples a local neuronal population with high temporal and anatomical resolution. In the present study, we aimed to expand on previous reports and examine brain activity for selectivity of scenes and objects in the broadband high-gamma frequency range (50-150 Hz). We collected iEEG data from 27 epileptic patients while they watched a series of images, containing objects and scenes, and we identified 375 bipolar channels responding to at least one of these two categories. Using K-means clustering, we delineated their brain localization. In addition to the two areas described previously, we detected significant responses in two other scene-selective areas, not yet reported by any electrophysiological studies; namely the occipital place area (OPA) and the retrosplenial complex. Moreover, using iEEG we revealed a much broader network underlying visual processing than that described to date, using specialized functional imaging experimental designs. Here, we report the selective brain areas for scene processing include the posterior collateral sulcus and the anterior temporal region, which were already shown to be related to scene novelty and landmark naming. The object-selective responses appeared in the parietal, frontal, and temporal regions connected with tool use and object recognition. The temporal analyses specified the time course of the category selectivity through the dorsal and ventral visual streams. The receiver operating characteristic analyses identified the PPA and the fusiform portion of the LOC as being the most selective for scenes and objects, respectively. Our findings represent a valuable overview of visual processing selectivity for scenes and objects based on iEEG analyses and thus, contribute to a better understanding of visual processing in the human brain.

• Publikační typ
• časopisecké články MeSH

Recent research has brought mixed results about differences in attention allocation measured by eye tracking between autistic and neurotypical individuals. There are several reasons that might be at the core of this confusion, including the given task. We tested 10 neurotypical adults in our experiment: they filled out a questionnaire based on self-evaluation assessing their position on the autistic spectrum. Their eye movements were recorded while viewing several complex visual scenes in two conditions: free viewing and completing a task. We qualitatively compared the visual strategies of two participants scoring on extreme poles of the spectrum in the analysis. Our findings indicate that the task might play a crucial role in research on attention allocation in autism.

• MeSH
• duševně nemocní psychologie   MeSH
• kvalitativní výzkum MeSH
• lidé MeSH
• neuropsychologické testy MeSH
• percepce MeSH
• plnění a analýza úkolů MeSH
• poruchy autistického spektra * diagnóza   psychologie   MeSH
• pozornost MeSH
• průzkumy a dotazníky MeSH
• technologie sledování pohybu očí MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• práce podpořená grantem MeSH
• srovnávací studie MeSH

The dissociation between egocentric and allocentric reference frames is well established. Spatial coding relative to oneself has been associated with a brain network distinct from spatial coding using a cognitive map independently of the actual position. These differences were, however, revealed by a variety of tasks from both static conditions, using a series of images, and dynamic conditions, using movements through space. We aimed to clarify how these paradigms correspond to each other concerning the neural correlates of the use of egocentric and allocentric reference frames. We review here studies of allocentric and egocentric judgments used in static two- and three-dimensional tasks and compare their results with the findings from spatial navigation studies. We argue that neural correlates of allocentric coding in static conditions but using complex three-dimensional scenes and involving spatial memory of participants resemble those in spatial navigation studies, while allocentric representations in two-dimensional tasks are connected with other perceptual and attentional processes. In contrast, the brain networks associated with the egocentric reference frame in static two-dimensional and three-dimensional tasks and spatial navigation tasks are, with some limitations, more similar. Our review demonstrates the heterogeneity of experimental designs focused on spatial reference frames. At the same time, it indicates similarities in brain activation during reference frame use despite this heterogeneity.

• MeSH
• lidé MeSH
• mapování mozku metody   MeSH
• mínění fyziologie   MeSH
• neuropsychologické testy MeSH
• pozornost fyziologie   MeSH
• prostorová paměť fyziologie   MeSH
• světelná stimulace metody   MeSH
• vnímání prostoru fyziologie   MeSH
• zraková percepce fyziologie   MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• časopisecké články MeSH