Results 11 to 20 of about 3,562 (238)

The clinical application of critical flicker fusion frequency in demyelinating optic neuritis [PDF]

open access: yesAdvances in Ophthalmology Practice and Research, 2021
Purpose: To investigate the application of critical flicker fusion frequency (CFF) in demyelinating optic neuritis (DON). Methods: A cross-sectional study. A total of 127 eyes in 69 DON patients and 63 eyes in 33 healthy control (HC) groups were included
Junxia Fu   +6 more
doaj   +2 more sources

An Arduino-Powered Device for the Study of White Perception beyond the Visual Chromatic Critical Flicker Fusion Frequency [PDF]

open access: yesJournal of Imaging
Arduino microcontrollers are used for a wide range of technological and biomedical applications, such as image classification, computer vision, brain–computer interaction and vision experiments.
Francisco J. Ávila
doaj   +2 more sources

Assessing the Relationship Between the Flicker Test and Cognitive Performance [PDF]

open access: yesBiology
An individual’s ability to process flickering light is expressed by critical flicker fusion frequency (CFFF), tested with the flicker test. CFFF is used to assess visual processing, arousal, and cognitive functioning, among other things, although it is ...
Natalia D. Mankowska   +4 more
doaj   +2 more sources

Orientation and Contrast Tuning Properties and Temporal Flicker Fusion Characteristics of Primate Superior Colliculus Neurons [PDF]

open access: yesFrontiers in Neural Circuits, 2018
The primate superior colliculus is traditionally studied from the perspectives of gaze control, target selection, and selective attention. However, this structure is also visually responsive, and it is the primary visual structure in several species ...
Chih-Yang Chen   +4 more
doaj   +2 more sources

Two Visual Training Paradigms Associated with Enhanced Critical Flicker Fusion Threshold [PDF]

open access: yesFrontiers in Psychology, 2016
Critical flicker fusion thresholds (CFFT) describe when quick amplitude modulations of a light source become undetectable as the frequency of the modulation increases and are thought to underlie a number of visual processing skills, including reading ...
Tianyou Zhou   +4 more
doaj   +2 more sources

Evaluating letter recognition, flicker fusion, and the Talbot-Plateau law using microsecond-duration flashes. [PDF]

open access: yesPLoS ONE, 2015
Four experiments examined the ability of respondents to identify letters that were displayed on an LED array with flashes lasting little more than a microsecond. The first experiment displayed each letter with a single, simultaneous flash of all the dots
Ernest Greene
doaj   +2 more sources

Visual Neuroplasticity: Modulating Cortical Excitability with Flickering Light Stimulation [PDF]

open access: yesJournal of Imaging
The balance between cortical excitation and inhibition (E/I balance) in the cerebral cortex is critical for cognitive processing and neuroplasticity. Modulation of this balance has been linked to a wide range of neuropsychiatric and neurodegenerative ...
Francisco J. Ávila
doaj   +2 more sources

Spectral sensitivity and temporal resolution of the sexually dimorphic compound eyes of Electrogena lateralis [PDF]

open access: yesScientific Reports
Several mayfly species have sexually dimorphic compound eyes. Female Electrogena lateralis have uniform eyes, while male eyes are split into ventral and dorsal regions.
Ádám Egri   +2 more
doaj   +2 more sources

Impact of Weekly Physical Activity on Stress Response: An Experimental Study

open access: yesFrontiers in Psychology, 2021
The aim of this research is focused on analyzing the alteration of the psychophysiological and cognitive response to an objective computerized stress test (Determination Test - DT-, Vienna test System®), when the behavioral response is controlled.
Ricardo de la Vega   +2 more
doaj   +1 more source

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