Results 51 to 60 of about 3,768 (215)

Representationalism and the Spatial Representational Contents of Afterimage Experiences

open access: yesAnalytic Philosophy, EarlyView.
ABSTRACT Experiences of afterimages have often been cited as counterexamples to representationalism about vision, that is, as counterexamples to the thesis that the phenomenal character of a visual experience is completely determined by its representational content. In this paper, I discuss a possible counterexample to representationalism that is based
René Jagnow
wiley   +1 more source

A Patient-Specific Computational Framework for the Argus II Implant

open access: yesIEEE Open Journal of Engineering in Medicine and Biology, 2020
Goal: Retinal prosthesis performance is limited by the variability of elicited phosphenes. The stimulating electrode's position with respect to retinal ganglion cells (RGCs) affects both perceptual threshold and phosphene shape.
Kathleen E. Finn   +4 more
doaj   +1 more source

Processing of emotional expression in subliminal and low-visibility images [PDF]

open access: yes, 2013
This thesis investigated the processing of emotional stimuli by the visual system, and how the processing of emotions interacts with visual awareness. Emotions have been given ‘special’ status by some previous research, with evidence that the processing ...
Filmer, Hannah
core  

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

open access: yesExperimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Modulation of visual cortical excitability by working memory: effect of luminance contrast of mental imagery

open access: yesFrontiers in Psychology, 2011
Although much is known about the impact of stimulus properties such as luminance contrast, spatial frequency and orientation on visually evoked neural activity, much less is known about how they modulate neural activity when they are properties of a ...
Zaira eCattaneo   +3 more
doaj   +1 more source

Emergency resuscitation extracorporeal membrane oxygenation (ER ECMO) in 60 saves life

open access: yesJournal of Emergencies, Trauma and Shock, 2023
Aluminum phosphide (ALP) is one of the most commonly used pesticides worldwide with high mortality rates primarily due to the production of phosphene gas which causes severe mitochondrial damage leading to refractory myocardial depression, refractory ...
Gowtham Vijayakumar   +4 more
doaj   +1 more source

Wayfinding with Simulated Prosthetic Vision: Performance comparison with regular and structure-enhanced renderings [PDF]

open access: yes, 2014
International audienceIn this study, we used a simulation of upcoming low-resolution visual neuroprostheses to evaluate the benefit of embedded computer vision techniques in a wayfinding task.
Jouffrais, Christophe   +2 more
core   +3 more sources

Thermal stimulation of pressure phosphenes [PDF]

open access: yes, 2021
Abstract To investigate effect on the intensity of pressure phosphenes (PP) of various methods of heating hands, as well as manual influence on cervical spine. This study included subjective assessments of the PP intensity in 10 healthy men, and chronometry of bioelectrical activity of brain and heart using electroencephalography (EEG ...
Alexander Kholmanskiy   +2 more
openaire   +1 more source

Transcranial Alternating Current Stimulation at the Individual Alpha Frequency Shows Potential Value in Improving Working Memory in Healthy Participants

open access: yesBrain and Behavior, Volume 16, Issue 5, May 2026.
IAF‐tACS significantly improves high‐load WM performance in healthy participants. The increased P300 amplitude in the frontocentral region during high‐load tasks suggests that parietal cortex stimulation may enhance cognitive resource allocation in the prefrontal area by modulating the frontoparietal network, which could be a key mechanism for its WM ...
Zhiqiang Wang   +4 more
wiley   +1 more source

Inducing lateralized phosphenes over the occipital lobe using transcranial magnetic stimulation to navigate a virtual environment.

open access: yesPLoS ONE, 2021
Electrical stimulation involving visual areas of the brain produces artificial light percepts called phosphenes. These visual percepts have been extensively investigated in previous studies involving intracortical microsimulation (ICMS) and serve as the ...
Adonay N Gebrehiwot   +2 more
doaj   +1 more source

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