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Publications related to Psychophysics (10,000)
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The interactions between emotion and attention are complex due to the multifaceted nature of attention. Adding to this complexity, the COVID-19 pandemic has altered the emotional landscape, broadly heightening health and financial concerns. Can the heightened concerns about COVID-19 impair one or more of the components of attention? To explore the...
Article
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In order to effectively improve users' decision making efficiency for color encoding in visual statistics tasks, it is necessary to first investigate the perceptual problem of human visual system for color encoding in visualization interfaces. Therefore, the concept of significant difference into color encoding research was introduced, generates a...
Article
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Accidents involving pedestrians are particularly common at unsignalised intersections and mid-block crosswalks, where vehicles often do not yield to them. Analysing and understanding pedestrian crossing behaviour at such locations is vital for improving road safety. Previous studies have repeatedly shown that pedestrians tend to accept smaller t...
Article
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ZET Spor kişilerin kendilerini fiziksel ve psikolojik olarak rahatlatmak için yapılan fizyolojik aktivitelerdir. Spor fiziksel yetenek ve becerileri kullanmayı, geliştirmeyi hedefleyen rekabete dayalı fiziksel aktiviteler olarak da görülmektedir. Spor belirli fiziki aktiviteler vasıtasıyla insanların sosyalleşmesine katkı sağlayan, performanslarını...
Article
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Different studies on temporal control of behavior have focused on making modifications to experimental tasks by introducing disruptors to know how these manipulations modify temporal control. The aim of this study was to produce changes in temporal discrimination in a temporal bisection task by using a disruptor associated with motivation, which co...
Article
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Different studies on temporal control of behavior have focused on making modifications to experimental tasks by introducing disruptors to know how these manipulations modify temporal control. The aim of this study was to produce changes in temporal discrimination in a temporal bisection task by using a disruptor associated with motivation, which co...
Article
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Psychophysical methods are a cornerstone of psychology, cognitive science, and neuroscience where they have been used to quantify behavior and its neural correlates for a vast range of mental phenomena. Their power derives from the combination of controlled experiments and rigorous analysis through signal detection theory. Unfortunately, they requi...
Article
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Forest Ecosystem Services (FES) are widely recognised by the society nowadays. However, no study in the literature has analysed a ranking of FES after the pandemic. This paper investigated civil society’s perception and knowledge toward these services; in addition, the presence of attitudinal or behavioural patterns regarding individual’s preferenc...
Article
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In order to clarify the quantitative relationship between students’ visual clarity, comfort, and environmental brightness in the light environment of multimedia classrooms in colleges and universities and obtain the threshold and influence trends of brightness, visual clarity, and visual comfort in the light environment of the multimedia classroom,...
Article
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Objectives Higher education student musicians face high physical, psychological, and emotional demands affecting their well-being and academic experience. This study examined the feasibility and preliminary effectiveness of the so-called CRAFT program, based on mindfulness, yoga, positive psychology, and emotional intelligence, to improve psycholog...
Article
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Background: Psychophysical factors may have an impact on the disease of obesity, and it is important to explore which aspects may play an important role on the well-being of obese patients undergoing bariatric surgery. The purpose of this study was to assess the associations of a high body mass index (BMI) and greater dissatisfaction with body imag...
Preprint
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Natural sounds contain rich patterns of amplitude modulation (AM), which is one of the essential sound dimensions for hearing perception. The sensitivity of human hearing to AM measured by psychophysics takes diverse forms, from low-pass to high-pass, depending on the experimental conditions. Here, we address with a single framework the questions o...
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Background Nonpharmacologic mind-body therapies have demonstrated efficacy in low back pain. However, the mechanisms underlying these therapies remain to be fully elucidated. Objective In response to these knowledge gaps, the Stanford Center for Low Back Pain—a collaborative, National Institutes of Health P01–funded, multidisciplinary research cen...
Article
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The Covid-19 pandemic has caused extreme stress on healthcare systems. Workers directly or indirectly involved in the treatment of patients have experienced increased workload and negative events associated with the lack of effective treatments, high mortality and the possibility of health care collapse Objective: To characterize through a survey a...
Article
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The safety of road users is one of the priority issues taken into account in both the operation and design of vehicles. The presented work is part of a study that aims to develop a method for parametric assessment of driver behavior. The driving style of a driver depends on their skills and psychophysical characteristics, the type and performance o...
Article
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Evidence supports that migraine is a complex pain condition with different underlying mechanisms. We aimed to quantify potential associations between demographic, migraine-related, and psychophysical and psychophysical variables in women with migraine. Demographic (age, height, and weight), migraine-related (intensity, frequency, and duration), rel...
Article
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Objectives To investigate effectiveness of olfactory training (OT) in COVID-19 patients with persistent olfactory dysfunction (OD).Methods From March 2020 to March 2022, COVID-19 patients with OD were prospectively followed in three European medical centers for a period of 18 months. A standardized OT protocol were recommended to patients. Patient-...
Article
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Chemosensory dysfunction is a frequent postacute sequela of COVID-19. Depending on the type of test used to measure it (self-report vs. direct test), the degree of chemosensory dysfunction in long-term COVID-19 has been found to be highly variable. In this manuscript, we report the cross-sectional data (first assessment) of a longitudinal study (6-...
Article
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Persistent olfactory dysfunction is a major concern post-COVID-19, affecting up to 5% of all patients. Different therapeutic options, including mometasone nasal spray, have been recommended, only some of which have been validated for post-COVID-19 olfactory dysfunction. In this study we psychophysically assessed the effect of intranasally applied m...
Article
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Music-imaginative Pain Treatment (MIPT) is part of the multi-professional treatment plan for hospitalised patients in departments for psychosomatic medicine. MIPT is an intervention that encourages the patient to create music representing pain and relief from pain and promotes active engagement and self-reflection. This single case study of a 46-ye...
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Contrast adaptation is a fundamental visual process that has been extensively investigated and used to infer the selectivity of visual cortex. We recently reported an apparent disconnect between the effects of contrast adaptation on perception and functional magnetic resonance imaging BOLD response adaptation, in which adaptation between chromatic...
Article
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Spatial crowding occurs when an object is cluttered among other objects in space and is a ubiquitous factor affecting object recognition in the peripheral visual field. Crowding is typically tested by presenting crowded stimuli at an eccentric location while having observers fixate at a point in space. However, even during fixation, our eyes are no...
Article
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As a measure of the brain’s temporal fine-tuning capacity, temporal resolution power (TRP) explained repeatedly a substantial amount of variance in psychometric intelligence. Recently, spatial suppression , referred to as the increasing difficulty in quickly perceiving motion direction as the size of the moving stimulus increases, has attracted par...
Preprint
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Visual perception is abnormal in psychotic disorders such as schizophrenia. In addition to hallucinations, laboratory tests show differences in fundamental visual processes including contrast sensitivity, center-surround interactions, and perceptual organization. A number of hypotheses have been proposed to explain visual dysfunction in psychotic d...
Preprint
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Primates rely on two eyes to see depth, while keeping a stable vision with one or two eyes open. Although psychophysical and modeling studies have investigated how monocular signals are combined to form binocular vision, the corresponding neuronal mechanisms, especially in V1 where most neurons are binocular but with different eye preferences, are...
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Purpose of Review This short review updates an exhaustive one written by Correa et al. in 2019 about haptic training simulation on needle insertion in the medical field. Recent Findings Latest works refine well-known models and enhance setups and methods to facilitate generically getting experimental data. Summary We provide a complementary focus...
Article
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A comparative single-evaluation cross-sectional study was performed to evaluate cognitive damage in post-COVID-19 patients. The psychophysics tests of Two-Alternative Forced Choice (2AFC) and Simple Reaction Time (SRT), under a designed virtual environment, were used to evaluate the cognitive processes of decision-making, visual attention, and info...
Preprint
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This Part focuses on the preparation of the neural Saliency Map defining the current external environment. It represents the Short Term memory of the animal. Section 15.5 addresses the visual system as an exemplar of the overall system while Section 15.6 addresses the exemplar's role in the paleocortex. Section 15.7 extrapolates the concepts in the...
Preprint
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The morphology of the neural system has not been previous addressed at the level of detail in this work. Section 10.1 addresses the ground rules for any comprehensive review of morphology. Section 10.2 reviews the cytoarchitecture of the human brain, with specific focus on the prefrontal cortex; and addresses whether all human brains are identical....
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Purpose Accurate evaluation of the cup-to-disc ratio is crucial for optometrists and may be influenced by their clinical experience. The study’s objective was to compare the thresholds for discriminating vertical cup-to-disc ratio (VCDR) between years 2, 3, and 4 clinical optometry trainees. Methods One hundred fundus photos with various VCDR size...
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Attention is a complex cognitive process with innate resource management and information selection capabilities for maintaining a certain level of functional awareness in socio-cognitive service agents. The human-machine society depends on creating illusionary believable behaviors. These behaviors include processing sensory information based on con...
Preprint
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Battery life is an increasingly urgent challenge for today's untethered VR and AR devices. However, the power efficiency of head-mounted displays is naturally at odds with growing computational requirements driven by better resolution, refresh rate, and dynamic ranges, all of which reduce the sustained usage time of untethered AR/VR devices. For in...
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In order to accurately parse the visual scene into distinct surfaces, it is essential to determine whether a local luminance edge is caused by a boundary between two surfaces or a shadow cast across a single surface. Previous studies have demonstrated that local chromatic cues may help to distinguish edges caused by shadows from those caused by sur...
Article
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A growing body of evidence highlights the intricate linkage of exteroceptive perception to the rhythmic activity of the visceral body. In parallel, interoceptive inference theories of affective perception and self-consciousness are on the rise in cognitive science. However, thus far no formal theory has emerged to integrate these twin domains; inst...
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Purpose of Review To provide an overview of psychophysical testing in olfaction and gustation. Recent Findings Subjective patient report correlates poorly with objective assessment of olfaction and gustation. It is therefore important that clinicians and researchers perform psychophysical testing during chemosensory assessment. There are several va...
Preprint
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Advances in theoretical understanding are frequently unlocked by access to large, diverse experimental datasets. Olfactory neuroscience and psychophysics remain years behind the other senses in part because rich datasets linking olfactory stimuli with their corresponding percepts, behaviors, and neural pathways underlying this transformation, remai...
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Complexity is one of the major attributes of the visual perception of texture. However, very little is known about how humans visually interpret texture complexity. A psychophysical experiment was conducted to visually quantify the seven texture attributes of a series of textile fabrics: complexity, color variation, randomness, strongness, regulari...
Method
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The author of this new method MAVITI (phantom limb massage with a visual-tactile illusion) of reducing phantom limb pain (PLP) is clinical psychologist and physiotherapist Dušan Enova, employed at the University Medical Centre Ljubljana (UMCL), Slovenia, EU. Dušan Enova found that in a calm state of consciousness of psychophysical relaxation, our...
Article
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The grating orientation discrimination task (GOT) is a sensitive and reliable measure of tactile spatial resolution, or acuity. We used the GOT in three experiments to investigate the effects of hand posture and hand visibility on spatial acuity. Participant sex and experimental design were also manipulated. Healthy adult participants received brie...
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Choroba zwyrodnieniowa stawów jest najczęściej występującą chorobą narządu ruchu, postępującą, obejmującą w pierwszej kolejności powierzchnie stawowe. Zwyrodnienia wywołują u pacjentów bol i sztywność stawów, co prowadzi do utrudnienia życia codziennego oraz negatywnie wpływa na komfort psychofizyczny chorego. Celem pracy była ocena wpływu dwutygod...
Article
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Induced motion is the illusory motion of a target away from the direction of motion of the unattended background. If it is a result of assigning background motion to self-motion and judging target motion relative to the scene as suggested by the flow parsing hypothesis then the effect must be mediated in higher levels of the visual motion pathway w...
Preprint
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The human ability to recognize when an object is known or novel currently outperforms all open set recognition algorithms. Human perception as measured by the methods and procedures of visual psychophysics from psychology can provide an additional data stream for managing novelty in visual recognition tasks in computer vision. For instance, measure...
Article
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Objective Reports of smell loss following traumatic brain injury (TBI) are a well-documented but understudied phenomenon. Given the broad consequences of olfactory loss, we characterized psychophysical olfactory dysfunction in individuals with moderate to severe TBI using systematic review and meta-analytic methods.Methods Following Preferred Repor...
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Eating disorders among children and youth are a serious social problem. The time of development is the starting point in shaping eating patterns. Proper nutrition provides the basis for psychophysical development. A knowledgeable pediatrician can improve society’s health by engaging parents and, later, the child or youth. We offer knowledge on the...
Article
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Umami non-discriminators (NDs) are a sub-group of the population with a reduced ability to discriminate between monosodium glutamate (MSG) and sodium chloride (NaCl) compared to umami discriminators (UDs). No research has investigated umami and salty taste perception associations across detection threshold (DT), recognition threshold (RT), and supr...
Conference Paper
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Resumo: o suicídio é causa de mortalidade evitável entre professores no Brasil. Compreender esse fenômeno é o primeiro passo para a sua prevenção. Este estudo analisou dados secundários nacionais de vigilância epidemiológica do Sistema de Informação sobre Mortalidade, do Ministério da Saúde, edição de 2019, por meio de um estudo transversal de abor...
Article
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The COVID-19 pandemic is a current emergency worldwide. All the consequent changes in sanitary systems have negatively affected the work–life balance. In particular, healthcare workers suffered from anxiety, stress, and depression, mostly nurses compared to physicians. To handle this situation, the adoption of different coping strategies has played...
Article
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The purpose of this study is to take preliminary steps to unify psychoacoustic techniques with reaction-time methodologies to address the perceptual mechanisms responsible for the detection of one vs. multiple sounds. We measured auditory redundancy gains for auditory detection of pure tones widely spaced in frequency using the tools of Systems Fac...
Article
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We propose a series of modifications to the Barten contrast sensitivity function model for peripheral vision based on anatomical and psychophysical studies. These modifications result in a luminance pattern detection model that could quantitatively describe the extent of veridical pattern resolution and the aliasing zone. We evaluated our model aga...
Article
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Nursing belongs to the group of professions particularly exposed to stress. Since the ability to cope with stress is an important aspect of mental health, the aim of this study was to identify the types of nurses’ behaviours in terms of different coping styles used when dealing with work-related and psychosocial stress. The study was conducted amon...
Article
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Background A virtual reality experience (VRE) could represent a viable non-pharmacological intervention to reduce and better manage the main factors of psychophysical distress related to the diagnosis and treatment of cancer. Aim The “Patient’s Dream” study was a two-arm randomized controlled trial conducted at the Regina Elena National Cancer Ins...
Article
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During the rubber hand illusion (RHI), the synchronous stroking of the participants’ concealed hand and a visible rubber hand induces a conflict among visuo-tactile inputs, leading healthy subjects to perceive the illusion of being touched on the rubber hand, as if it were part of their body. The predictive coding theory suggests that the RHI emerg...
Article
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Retinal gene supplementation therapy such as the first approved one, voretigene neparvovec, delivers a functioning copy of the missing gene enabling the protein transcription in retinal cells and restore visual functions. After gene supplementation for the genetic defect, a complex network of functional regeneration is the consequence, whereas the...
Article
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Several neuroimaging studies have analyzed the neural networks involved in thermal sensation. In some of these studies, participants were instructed to evaluate and report the thermal sensation using a point scale, visual analog scale, or other psychophysical rating tool while the imaging data were obtained. Therefore, the imaging data may reflect...
Article
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Can machine learning crack the code in the nose? Over the past decade, studies tried to solve the relation between chemical structure and sensory quality with Big Data. These studies advanced computational models of the olfactory stimulus, utilizing artificial intelligence to mine for clear correlations between chemistry and psychophysics. Computat...
Article
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Firstly, we agree that our analysis is based on self‐reported olfactory loss alone, which is a source of important bias as it significantly underestimates the real prevalence and severity of olfactory dysfunction (OD) compared to psychophysical tests This article is protected by copyright. All rights reserved.
Article
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Both hearing and touch are sensitive to the frequency of mechanical oscillations—sound waves and tactile vibrations, respectively. The mounting evidence of parallels in temporal frequency processing between the two sensory systems led us to directly address the question of perceptual frequency equivalence between touch and hearing using stimuli of...
Article
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Purpose We explored whether thyroid-associated ophthalmopathy (TAO) patients without clinical signs of dysthyroid optic neuropathy (DON) would have a selective deficit mediated by S-cone. Methods Thirty-two TAO patients without clinical signs of DON (non-DON, 42.03 ± 9.59 years old) and 27 healthy controls (41.46 ± 6.72 years old) participated in...
Article
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Rationale Affiliative tactile interactions help regulate physiological arousal and confer resilience to acute and chronic stress. C-tactile afferents (CTs) are a population of unmyelinated, low threshold mechanosensitive cutaneous nerve fibres which respond optimally to a low force stimulus, moving at between 1 and 10 cm/s. As CT firing frequencies...
Article
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This article focuses on the human factor in UAV operations. In the manuscript, research on the psychophysical state of student-operators under the license of UAVO VLOS <4 kg. For the analysis of the psychophysical state, the pulse parameter was used, which is one of the values that describe the work of the cardiovascular system and is one for the o...