Results 81 to 90 of about 572,678 (236)
Brain Sciences, 2022 Damage to the visual cortex structures after high altitude exposure has been well clarified. However, changes in the neuronal activity and functional connectivity (FC) of the visual cortex after hypoxia/reoxygenation remain unclear.
Xinjuan Zhang +6 more
doaj +1 more source
Bottom-up retinotopic organization supports top-down mental imagery [PDF]
, 2013 Finding a path between locations is a routine task in daily life. Mental navigation is often used to plan a route to a destination that is not visible from the current location. We first used functional magnetic resonance imaging (fMRI) and surface-based
Huang, R.-S., Sereno, Martin I.
core +2 more sources
Spatio-Temporal Dynamics of Visual Imagery for Intuitive Brain-Computer Interface [PDF]
arXiv, 2020 Visual imagery is an intuitive brain-computer interface paradigm, referring to the emergence of the visual scene. Despite its convenience, analysis of its intrinsic characteristics is limited. In this study, we demonstrate the effect of time interval and channel selection that affects the decoding performance of the multi-class visual imagery.
arxiv
Visual attention information can be traced on cortical response but not on the retina: evidence from electrophysiological mouse data using natural images as stimuli [PDF]
arXiv, 2023 Visual attention forms the basis of understanding the visual world. In this work we follow a computational approach to investigate the biological basis of visual attention. We analyze retinal and cortical electrophysiological data from mouse. Visual Stimuli are Natural Images depicting real world scenes.
arxiv
Detailed Visual Cortical Responses Generated by Retinal Sheet Transplants in Rats with Severe Retinal Degeneration. [PDF]
, 2018 To combat retinal degeneration, healthy fetal retinal sheets have been successfully transplanted into both rodent models and humans, with synaptic connectivity between transplant and degenerated host retina having been confirmed.
Aramant, Robert B +7 more
core
The significance of memory in sensory cortex [PDF]
, 2017 Early sensory cortex is typically investigated in response to sensory stimulation, masking the contribution of internal signals. Recently, van Kerkoerle and colleagues reported that attention and memory signals segregate from sensory signals within ...
Muckli, Lars, Petro, Lucy S.
core +1 more source
eLife, 2021 Visual perception in natural environments depends on the ability to focus on salient stimuli while ignoring distractions. This kind of selective visual attention is associated with gamma activity in the visual cortex.
Mahmood S Hoseini +8 more
doaj +1 more source
Reproducing sensory induced hallucinations via neural fields [PDF]
arXiv, 2022 Understanding sensory-induced cortical patterns in the primary visual cortex V1 is an important challenge both for physiological motivations and for improving our understanding of human perception and visual organisation. In this work, we focus on pattern formation in the visual cortex when the cortical activity is driven by a geometric visual ...
arxiv
Photons Do Collapse In the Retina Not in the Brain Cortex: Evidence from Visual Illusions [PDF]
NeuroQuantology 2011; 9(2): 206-230, 2002 While looking for evidence of quantum coherent states within the brain, many quantum mind advocates proposed experiments based on the assumption that the coherent state of a photon entering the visual system could somehow be preserved through the neural processing, or in other words they suppose that photons collapse not in the retina, but in the brain
arxiv +1 more source
Linking pain and the body: neural correlates of visually induced analgesia [PDF]
, 2012 The visual context of seeing the body can reduce the experience of acute pain, producing a multisensory analgesia. Here we investigated the neural correlates of this “visually induced analgesia” using fMRI.
, +5 more
core +2 more sources