ABSTRACT
Background: The reaction time (RT) of an organism refers to how quickly it reacts to a stimuli. The rate at which the central nervous system analyses sensory data and then executes it as a motor response is measured by RT. The human body responds to different sensory modalities in different ways and at different rates. This is critical in both routine and emergency situations. Gender, age, physical fitness, level of exhaustion, distraction, and alcohol have all been shown to influence RT. Aims and Objectives: The aims of this study were to compare the visual RT of first phase MBBS and BDS students to red and green colors. Materials and Methods: Following ethical approval, 250 first phase medical students, ranging in age from 17 to 20, were selected, and all participants provided written informed consent. Anand Agencies Pune designed an audiovisual RT gadget that was utilized to collect visual response time (VRT). The unpaired t-test was performed to assess the data statistically. Results: The individuals’ VRT for the colors Red (R) (Mean: 0.199 s) and Green (G) (Mean: 0.218 s) were statistically significant (P < 0.001). In addition, the variance of VRT in men (Mean: [R] 0.192 s, [G] 0.206 s) was significantly greater than in females (Mean: [R] 0.209 s, [G] 0.226 s; P < 0.001). The results were tallied and examined statistically. Conclusion: As a result of our research, we discovered that the VRT for green was significantly greater than that of red. This might be due to the fact that green takes longer to process than red. Males react to stimuli faster than females.
ABSTRACT
Objective To evaluate the clinical efficiency of intermittent photic stimulation (IPS) with pattern and red color plastic plates in video-electroencephalography(EEG).Methods Three hundred and fifty-eight patients hospitalized in Wuhan Children's Hospital from March 2013 to March 2014 were selected,and they were examined by using stroboscope with a red plastic plate,a dots printed plastic plate,and ordinary white flicker for photic driving response (PDR),photoparoxysmal responses (PPR),photoconvulsive response (PCR).The results of patients with PDR,PPR,PCR were analyzed.Results The PDR synchronously evoked by the three flickering patterns were in 29 cases,and the amplitude of photic drivings evoked by ordinary white flicker and red flicker were higher than that of flickering dot pattern [(30.294 ± 7.767) μV,(31.103 ± 8.920) μV vs (24.436 ± 8.075) μV],and there were significant differences(t =2.983,2.815,P =0.003,0.008).However,there was no significant difference between ordinary white flicker and red flicker (t =0.368,P =0.710).The PPR evoked were in 17 cases,and 16 cases (94.12％) of them were evoked by red color,while 10 cases (58.82％) wcre evoked by white light,and 1 case only evoked by flickering dot pattern.However,stronger intensity and longer duration time of PPR were evoked by red color than by white light.In 3 patients with positive PCR,the epileptic seizure was more likely to be evoked by red color or pattern plastic plate.Conclusions IPS with red and pattem plastic plate is more potent in eliciting photosensitive epilepsy in video-EEG than the ordinary white light.Moreover,it could reduce the discomfort of eyes without influencing PDR in comparison to the ordinary white light.