Results 41 to 50 of about 829,089 (280)

Computing optical flow in the primate visual system [PDF]

, 1989
Computing motion on the basis of the time-varying image intensity is a difficult problem for both artificial and biological vision systems. We show how gradient models, a well-known class of motion algorithms, can be implemented within the magnocellular ...
Koch, Christof, Mathur, Bimal, Wang, H. Taichi   +2 more
core   +1 more source

Visual Recovery Reflects Cortical MeCP2 Sensitivity in Rett Syndrome

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Rett syndrome (RTT) is a devastating neurodevelopmental disorder with developmental regression affecting motor, sensory, and cognitive functions. Sensory disruptions contribute to the complex behavioral and cognitive difficulties and represent an important target for therapeutic interventions.
Alex Joseph Simon, Nathalie Picard, Valeria d'Andrea, Enchi Chang, Joseph Leffler, Eleonora Centofante, Matthew Taylor, Francesca Bardi, Francesca Cavicchiolo, Takao K. Hensch, Stefano Panzeri, Chinfei Chen, Michela Fagiolini   +12 more
wiley   +1 more source

Afterimages in fly motion vision

Vision Research, 2002
Afterimage-like effects modulate the responses of fly wide-field motion-sensitive cells following adaptation to stationary or slowly moving patterns. The origin of these afterimages is unclear. They have been interpreted as either the result of adaptation in the early visual system or as a direct consequence of the correlation scheme of motion ...
Harris, R., O'Carroll, D.
openaire   +3 more sources

Impaired perception of biological motion in Parkinson’s disease [PDF]

, 2016
OBJECTIVE: We examined biological motion perception in Parkinson’s disease (PD). Biological motion perception is related to one’s own motor function and depends on the integrity of brain areas affected in PD, including posterior superior temporal sulcus.
Cronin-Golomb, Alice, Jaywant, Abhishek, Roy, Serge, Shiffrar, Maggie   +3 more
core   +1 more source

Age‐Related Characteristics of SYT1‐Associated Neurodevelopmental Disorder

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives We describe the clinical manifestations and developmental abilities of individuals with SYT1‐associated neurodevelopmental disorder (Baker‐Gordon syndrome) from infancy to adulthood. We further describe the neuroradiological and electrophysiological characteristics of the condition at different ages, and explore the associations ...
Sam G. Norwitz, Josefine Eck, Joel S. Winston, Kate Baker   +3 more
wiley   +1 more source

Hand-Writing Motion Tracking with Vision-Inertial Sensor Fusion: Calibration and Error Correction

Sensors, 2014
The purpose of this study was to improve the accuracy of real-time ego-motion tracking through inertial sensor and vision sensor fusion. Due to low sampling rates supported by web-based vision sensor and accumulation of errors in inertial sensors, ego ...
Shengli Zhou, Fei Fei, Guanglie Zhang, Yunhui Liu, Wen J. Li   +4 more
doaj   +1 more source

Life‐Threatening Bradycardia in Anti‐NMDA‐Receptor Encephalitis and a Novel Use for Permanent Pacing

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Pediatric anti‐NMDA receptor encephalitis (pNMDARE) is an autoantibody‐mediated disorder that can cause severe autonomic dysfunction, including symptomatic bradycardia and asystole. Dysautonomia can last for years, making it very challenging to manage.
Sarah Tucker, Abhijit Das, Andres Jimenez, Areeba Basit, Yike Jiang, Emily A. Smitherman, Heather Van Mater, Taylor Howard, Alexander J. Sandweiss, Kristen S. Fisher   +9 more
wiley   +1 more source

Combining Unity with machine vision to create low latency, flexible and simple virtual realities

Methods in Ecology and Evolution
In recent years, virtual reality arenas have become increasingly popular for quantifying visual behaviours. By using the actions of a constrained animal to control the visual scenery, the animal perceives that it is moving through a virtual world ...
Yuri Ogawa, Raymond Aoukar, Richard Leibbrandt, Jake S. Manger, Zahra M. Bagheri, Luke Turnbull, Chris Johnston, Pavan K. Kaushik, Jaxon Mitchell, Jan M. Hemmi, Karin Nordström   +10 more
doaj   +1 more source

Vision: EM-erging Motion-Detecting Circuits [PDF]

Current Biology, 2014
How does the brain compare visual inputs over space and time to extract motion? Electron microscopic (EM) and molecular analyses reveal a new circuit architecture for motion processing in Drosophila. An offset in the weighting of synaptic connections and differential use of fast and slow nicotinic receptors suggests a mechanism that can implement ...
Silies, Marion, Clandinin, Thomas R.
openaire   +2 more sources

Event-based Vision meets Deep Learning on Steering Prediction for Self-driving Cars [PDF]

, 2018
Event cameras are bio-inspired vision sensors that naturally capture the dynamics of a scene, filtering out redundant information. This paper presents a deep neural network approach that unlocks the potential of event cameras on a challenging motion ...
Gallego, Guillermo, Garcia, Narciso, Loquercio, Antonio, Maqueda, Ana I., Scaramuzza, Davide   +4 more
core   +1 more source