The measurement of visual reaction time has been used to evaluate the processing speed of Central Nervous System and the coordination between the sensory and motor systems. Reaction time is influenced by different factors. Effect of gender difference on visual reaction time has been observed in this study. Present study was carried out on 100 medical students of Bhavnagar medical college between the age of 17-20. Out of them 50 were boys and 50 were girls. Study was done under three module. In first module detail medical history of subject were taken, in second module visual reaction time of subjects was measured using reaction time instrument and in third module statical analysis was done by unpaired 't' test. From study it was concluded that reaction time is less in boys than girls.

Reaction is purposeful voluntary response to different stimuli as visual or auditory stimuli. Auditory reaction time is time required to response to auditory stimuli. Quickness of response is very important in games like basketball. This study was conducted to compare auditory reaction time of basketball players and healthy controls. The auditory reaction time was measured by the reaction time instrument in healthy controls and basketball players. Simple reaction time and choice reaction time measured. During the reaction time testing, auditory stimuli were given for three times and minimum reaction time was taken as the final reaction time for that sensory modality of that subject. The results were statistically analyzed and were recorded as mean + standard deviation and student’s unpaired t-test was applied to check the level of significance. The study shows that basketball players have shorter reaction time than healthy controls. As reaction time gives the information how fast a person gives a response to sensory stimuli, it is a good indicator of performance in reactive sports like basketball. Sportsman should be trained to improve their reaction time to improve their performance

No abstract

No abstract

In addition to the use of other senses, auditory sense is widely used in health care, transportation, and industrial environments as it has an immediate arousing eff ect, [3] as sometimes while driving vehicle persons listens horns of more than one vehicle and accordingly takes decision for driving as well one would give way to ambulance on listening to horn of ambulance. Auditory reaction time is time required to respond to auditory stimuli.With the recognition that impaired decision making is prominently associated with various mental disorders, [4,5] decision making has attracted good attention in the studies of cognition and in psychiatry. [6] Background: Present study aimed to see effect of number of stimuli on auditory reaction time. Reaction is purposeful voluntary response to different stimuli as auditory stimuli. Auditory reaction time is time required to response to auditory stimuli. Materials and Methods: The auditory reaction time was measured by the reaction time instrument in subjects. Simple reaction time and choice reaction time measured. During the reaction time testing, auditory stimuli were given for three times and minimum reaction time was taken as the fi nal reaction time for that sensory modality of that subject. The results were statistically analyzed and were recorded as mean ± standard deviation and Student's paired t-test was applied to check the level of signifi cance. Results and Conclusion: The study shows that simple auditory reaction time is less than choice auditory reaction time. Mental processes are involved in identifi cation of stimulus, response selection, and programming and this takes certain time. Response to stimuli would be faster if number of stimuli is lesser in number. In routine life, many works done on information of auditory stimuli. Person should be careful while driving in talking with others or in mobiles. Training reduces reaction time. In medical examination, there are identifi cation of instruments, graphs, bones, and viva questions as well. Student can practice and decrease mental processing time for identifi cation of all this and can respond quickly.