15 papers · ranked by Valyu relevance
Franklin Leong, Babak Rahmani, Demetri Psaltis, Christophe Moser + 1 more
A fundamental challenge in neuroengineering is determining a proper artificial input to a sensory system that yields the desired perception. In neuroprosthetics, this process is known as artificial sensory encoding, and it holds a crucial role in prosthetic devices restoring sensory perception in individuals with…
Tijl Grootswagers, Amanda K. Robinson, Sophia M. Shatek, Thomas A. Carlson + 1 more
'Thomas A. Carlson' 'Daniele Marinazzo'] The basic computations performed in the human early visual cortex are the foundation for visual perception. While we know a lot about these computations, a key missing piece is how the coding of visual features relates to our perception of the environment. To investigate visual…
Inês Bramão, Mikael Johansson
The transfer-appropriate processing (TAP) account holds that episodic memory depends on the overlap between encoding and retrieval processing. In the current study, we employed multivariate pattern analysis (MVPA) of electroencephalography to examine the relevance of spontaneously engaged visual processing during…
Ehud Ahissar, Amos Arieli
During natural viewing, the eyes are never still. Even during fixation, miniature movements of the eyes move the retinal image across tens of foveal photoreceptors. Most theories of vision implicitly assume that the visual system ignores these movements and somehow overcomes the resulting smearing. However, evidence…
Joris Vincent, Marianne Maertens, Guillermo Aguilar
A key question in perception research is how stimulus variations translate into perceptual magnitudes, that is, the perceptual encoding process. As experimenters, we cannot probe perceptual magnitudes directly, but infer the encoding process from responses obtained in a psychophysical experiment. The most prominent…
Keisuke Fukuda, Edward K. Vogel
We are capable of storing a virtually infinite amount of visual information in visual long-term memory (VLTM) storage. At the same time, the amount of visual information we can encode and maintain in visual short-term memory (VSTM) at a given time is severely limited. How do these two memory systems interact to…
Moshe Gur
In my Perspective (), I have argued that the visual system can rapidly and efficiently handle a vast amount of information by keeping a parallel, one-to-one, data transfer between the retina and the primary visual cortex (V1). High-resolution vision is enabled by using saccadic eye movements to direct the central…
Robert Friedman
Here is a review of several empirical examples of information processing that occur in the primate cerebral cortex. These include visual processing, object identification and perception, information encoding, and memory. Also, there is a discussion of the higher scale neural organization, mainly theoretical, which…
Xi Wang, Andreas Ley, Sebastian Koch, James Hays + 2 more
'Marc Alexa'] When retrieving image from memory, humans usually move their eyes spontaneously as if the image were in front of them. Such eye movements correlate strongly with the spatial layout of the recalled image content and function as memory cues facilitating the retrieval procedure. However, how close the…
Dale Purves, Yaniv Morgenstern, William T. Wojtach
A central puzzle in vision science is how perceptions that are routinely at odds with physical measurements of real world properties can arise from neural responses that nonetheless lead to effective behaviors. Here we argue that the solution depends on: (1) rejecting the assumption that the goal of vision is to…
Mario Senden, Thomas C. Emmerling, Rick van Hoof, Martin A. Frost + 1 more
'Rainer Goebel'] Visual mental imagery is the quasi-perceptual experience of “seeing in the mind’s eye”. While a tight correspondence between imagery and perception in terms of subjective experience is well established, their correspondence in terms of neural representations remains insufficiently understood. In the…
John Smythies, Maximilien d'Oreye de Lantremange
In correlating color, OC and motion the TV system does not have the problem of differential speed that the brain has. Today's processors are fast enough to do all the necessary computation (black and white, color and motion) related to a single frame (even at very high resolution) in the time period between two…
Joseph S. Lappin, Herbert H. Bell
Visual perception involves spatially and temporally coordinated variations in diverse physical systems: environmental surfaces and symbols, optical images, electro-chemical activity in neural networks, muscles, and bodily movements-each with a distinctly different material structure and energy. The fundamental problem…
Maria M. Del Viva, Giovanni Punzi, Steven K. Shevell, Samuel G. Solomon
'Samuel G. Solomon'] The visual system is able to recognize a scene based on a sketch made of very simple features. This ability is likely crucial for survival, when fast image recognition is necessary, and it is believed that a primal sketch is extracted very early in the visual processing. Such highly simplified…
Benjamin Peters, James J. DiCarlo, Todd Gureckis, Ralf Haefner + 9 more
Vision is widely understood as an inference problem. However, two contrasting conceptions of the inference process have each been influential in research on biological vision as well as the engineering of machine vision. The first emphasizes bottom-up signal flow, describing vision as a largely feedforward…