On the accuracy of evaluations of temporal characteristics of visual perception

Abstract

We studied the accuracy of evaluations of the temporal characteristics of visual perception: critical frequency of light flickers, time of perception, and time of visual analyzer recovery. Results of comparison of the accuracy of evaluations are presented.

Inferior Parietal Lobule Encodes Visual Temporal Resolution Processes Contributing to the Critical Flicker Frequency Threshold in Humans

“…Visual temporal resolution processes in humans can be evaluated by measuring the Critical Flicker Frequency threshold (CFFt)[1], [2], defined as the frequency at which a flickering light is perceived as a continuous light [3], [4]. In normal subjects, several studies have investigated the influence on CFFt of several factors including age, blood carbon dioxide, and site of retinal stimulation [5]–[10] and confirmed that CFFt is a reliable test for the investigation of visual temporal resolution [11].…”

“…Visual temporal resolution processes in humans can be evaluated by measuring the Critical Flicker Frequency threshold (CFFt) [1] , [2] , defined as the frequency at which a flickering light is perceived as a continuous light [3] , [4] . In normal subjects, several studies have investigated the influence on CFFt of several factors including age, blood carbon dioxide, and site of retinal stimulation [5] – [10] and confirmed that CFFt is a reliable test for the investigation of visual temporal resolution [11] . Although the contribution of anterior visual pathways to the temporal analysis of visual stimuli is well established [12] – [14] , the physiological basis of CFFt and in particular the role played by the cortical areas in conscious perception of a flickering light is still unclear.…”

Application of virtual environments in training of ergatic system operators

“…• accepting and perceiving information (the initial stage of receiving information from different sensory sources) [22]; • evaluating and processing information (finding out the most important information and, then, its analysis and evaluation) [23]; • making a decision (planning a certain activity) [24]; • implementing the decision made (physical movement) [24]. One of the key elements of different models of operator's responses is reasoning or conclusion that make the ground for making a final decision [25,26].…”

Resolución temporal visual en pacientes con anemia drepanocítica

“…La frecuencia en que una luz intermitente se percibe como continua es conocida como Frecuencia Critica de Fusión (FCF) (Seitz, Nanez, Holloway, & Watanabe, 2005). La RTV es considerada como una medida de la velocidad de procesamiento del sistema nervioso y del nivel de activación cortical (Nardella, Rocchi, Conte, Bologna, Suppa, & Berardelli, 2014) y se ha confirmado que la determinación de la FCF es una prueba confiable para la investigación de la RTV (Petukhov, Rozhentsov, & Aliev, 2007).…”