A new digital distance element implementation using coincidence timing

Author(s):  
B. Kasztenny ◽  
M.V. Mynam ◽  
T. Joshi ◽  
A. Kathe ◽  
C. Daniels
Keyword(s):  
2006 ◽  
Vol 14 (1) ◽  
pp. 74-97 ◽  
Author(s):  
Régis Lobjois ◽  
Nicolas Benguigui ◽  
Jean Bertsch

This study examined the effect of tennis playing on the coincidence timing (CT) of older adults. Young, younger-old and older-old (20–30, 60–69, and 70–79 years old, respectively) tennis players and nonplayers were asked to synchronize a simple response (pressing a button) with the arrival of a moving stimulus at a target. Results showed that the older tennis players responded with a slight bias similar to that of the young players. Two experiments were conducted to determine whether the elimination of age effects through tennis playing was a result of maintaining basic perceptuomotor and perceptual processes or of some possible compensation strategy. The results revealed that the age-related increase in the visuomotor delay was significantly correlated with CT performance in older nonplayers but not in older tennis players. These results suggest that playing tennis is beneficial to older adults, insofar as they remained as accurate as younger ones despite less efficient perceptuomotor processes. This supports the compensation hypothesis.


2017 ◽  
Vol 122 (20) ◽  
pp. 203105 ◽  
Author(s):  
Alvaro Sanchez-Gonzalez ◽  
Allan S. Johnson ◽  
Ann Fitzpatrick ◽  
Christopher D. M. Hutchison ◽  
Clyde Fare ◽  
...  

2018 ◽  
Author(s):  
Henrikas Vaitkevicius ◽  
Vygandas Vanagas ◽  
Alvydas Soliunas ◽  
Algimantas Svegzda ◽  
Remigijus Bliumas ◽  
...  

Many experiments have demonstrated that the rhythms in the brain influence an initial information processing. We investigated whether the alternation rate of the perception of a Necker cube depended on the degree of synchronization between two streams of spikes, one stemming from an external flashing image and the other from the action of an internal impulse stream. Knowing how a flickering stimulus with a given frequency and duration affects the alternation rate of bi-stable perception we could estimate properties of the internal signal. As the internal spike frequency is difficult to control, we varied the frequency of the flicker stimulus. Our results show that the duration of the dominant stimulus perception depends on the frequency or duration of the flashing stimuli. The values of the stimuli, at which the changes of the duration of the perceived image was maximal, we have called ‘extremal’. While changing the flash duration, the extremal parameters repeated periodically at 4ms intervals. Increasing the duration of the extremal stimuli by less than 4 ms shortens the duration of the dominant stimulus perception. Hence we may conclude that it is not the stimulus duration but the accurate coincidence (timing) of the moments of switching on of external stimuli to match the internal stimuli which explains our experimental results.


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