The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper aims at classifying a gaze preference decision an operator made taking individual difference into account for purpose of a smooth human-machine interaction. A proposed method, inspired from a visual-psychophysical experiment of gaze preference decision-making when 2 faces are compared, focuses on a likelihood of a chosen face to the subject's gaze shift using an inferential statistical...
In this paper we present reaction-diffusion based two eye model to develop disparity selective binocular simple cell receptive fields (RFs) in layer IV of cat visual cortex (V1). Pre-eye opening environment is used for development of binocular simple cell RFs. Our model also supports post-eye opening period development of binocular simple cell RFs. Developed binocular simple cells, left and right...
Retinotopy is a tool for mapping of the visual cortex which provides detailed information about the correspondence between the visual field and its cortical representation in the visual subject. Therefore, the studies about retinotopic mapping is increasing rapidly as a branch of neuro science. Our study includes three main parts: The first one is the acquiring the data. While subject is stimulated...
Convergence insufficiency is a vision dysfunction in which people have difficulties performing visual tasks close to them such as reading. Symptoms include headaches, eye strain, blurred and double vision, and visual fatigue. Four subjects participated in 18 hours of vision rehabilitation consisting of home and laboratory sessions. During a longitudinal study, subjects performed a simple vergence...
Many studies have already demonstrated structural brain differences among different patient populations using the morphometric analysis techniques. Voxel-based morphometry (VBM) and deformation-based morphometry (DBM) are the two widely used methods. This paper mainly compared the difference of the two methods and analyzed the reason why many researches exist differences in the experimental results...
Human area V1 offers an excellent opportunity to study, using functional MRI, a range of properties in a specific cortical visual area, whose borders are defined objectively and convergently by retinotopic criteria. Previous fMRI studies in V1 retinotopic are typically used central and/or peri-central visual field stimulus. The retinotopic characteristics on human peripheral vision are still not well...
Visual orienting attention is well researched by using a visual cue. The spatial attention and the temporal attention have been compared by the brain-imaging data [Coull, J. T., Nobre, A. C. Where and When to pay attention: the neural systems for directing attention to spatial locations and to time intervals as revealed by both PET and fMRI. Journal of Neuroscience, 1998, 18, 7426-7435]. We developed...
The visual and auditory map alignment in the superior colliculus of barn owl is important for its accurate localization in prey behavior. This alignment may be disturbed by the blindness or prism wearing, the juvenile barn owl could adapt its auditory map to this mismatch after several weeks training. It is believed in literature that auditory map with the plasticity shifts in terms of the visual...
Developmental researchers investigate many pieces of infantspsila physical knowledge, e.g. the perception of causality, occlusion or object permanence, but a theoretical framework that would unify all these pieces, account for the most basic phenomena and make testable predictions has not been provided yet. Here we make an attempt to unify and explain the emergence of causality and occlusion perception...
Vision is basically a sensory modality, so it is no surprise that the investigation into the brainpsilas visual functions has been focused on its sensory aspect. Thus, questions like (1) how can external geometric properties represented in internal states of the visual system be grounded, (2) how do the visual cortical receptive fields (RFs) form, and (3) how can visual shapes be recognized have all...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.