Results 51 to 60 of about 9,173,081 (354)

Clinical utility of cerebrospinal fluid biomarkers measured by LUMIPULSE® system

open access: yesAnnals of Clinical and Translational Neurology, Volume 9, Issue 12, Page 1898-1909, December 2022., 2022
Abstract Objectives Cerebrospinal fluid (CSF) biomarkers of Alzheimer's disease (AD) are well‐established in research settings, but their use in routine clinical practice remains a largely unexploited potential. Here, we examined the relationship between CSF biomarkers, measured by a fully automated immunoassay platform, and brain β‐amyloid (Aβ ...
Hisashi Nojima   +9 more
wiley   +1 more source

Action-Specific Perception & Performance on a Fitts's Law Task in Virtual Reality: The Role of Haptic Feedback [PDF]

open access: yes, 2022
While user's perception & performance are predominantly examined independently in virtual reality, the Action-Specific Perception (ASP) theory postulates that the performance of an individual on a task modulates this individual's spatial & time perception pertinent to the task's components & procedures.
arxiv   +1 more source

Size perception in hemianopia and neglect [PDF]

open access: yesBrain, 2001
Some debate remains as to whether underestimation of the horizontal size of objects in the left part of visual space is a general disturbance in spatial neglect. The issue is unclear because size perception may be influenced by factors other than neglect, e.g. visual field defects such as hemianopia.
Susanne Ferber, Hans-Otto Karnath
openaire   +3 more sources

Early‐onset Alzheimer's disease shows a distinct neuropsychological profile and more aggressive trajectories of cognitive decline than late‐onset

open access: yesAnnals of Clinical and Translational Neurology, Volume 9, Issue 12, Page 1962-1973, December 2022., 2022
Abstract Objectives Early‐ and late‐onset Alzheimer's disease (EOAD and LOAD) share the same neuropathological traits but show distinct cognitive features. We aimed to explore baseline and longitudinal outcomes of global and domain‐specific cognitive function in a well characterized cohort of patients with a biomarker‐based diagnosis.
Adrià Tort‐Merino   +16 more
wiley   +1 more source

Size and shape constancy in consumer virtual reality [PDF]

open access: yes, 2020
With the increase in popularity of consumer virtual reality headsets, for research and other applications, it is important to understand the accuracy of 3D perception in VR.
A Glennerster   +42 more
core   +2 more sources

The Role of Temporal and Spatial Attention in Size Adaptation

open access: yesFrontiers in Neuroscience, 2020
One of the most important tasks for the visual system is to construct an internal representation of the spatial properties of objects, including their size.
Alessia Tonelli   +3 more
doaj   +1 more source

Soundscape Assessment of Aircraft Height and Size

open access: yesFrontiers in Psychology, 2018
It is accepted knowledge that, for a given equivalent sound pressure level, sounds produced by planes are worse received from local communities than other sources related to transportation.
Gianluca Memoli   +2 more
doaj   +1 more source

Eye-Tracking Reveals that the Strength of the Vertical-Horizontal Illusion Increases as the Retinal Image Becomes More Stable with Fixation

open access: yesFrontiers in Human Neuroscience, 2017
The closer a line extends toward a surrounding frame, the longer it appears. This is known as a framing effect. Over 70 years ago, Teodor Künnapas demonstrated that the shape of the visual field itself can act as a frame to influence the perceived length
Philippe A. Chouinard   +2 more
doaj   +1 more source

Familiar size and the theory of off-sized perceptions [PDF]

open access: yesPerception & Psychophysics, 1987
The role of familiar size in the visual judgment of size and distance was investigated using reduced conditions of observation and instructions that called for either objective or apparent size and distance judgments. Each observer was presented with one object at one distance (56, 107, or 149 cm).
Walter C. Gogel   +1 more
openaire   +3 more sources

Cross-modal Influence on Oral Size Perception [PDF]

open access: yes, 2016
Objective: Evidence suggests people experience an oral size illusion and commonly perceive oral size inaccurately; however, the nature of the illusion remains unclear.
Crutchfield, Parker   +3 more
core   +1 more source

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