The bottleneck mechanism occurs when the first stimulus is being processed, any other stimuli cannot be processed. The processing of the second stimulus is postponed which slows down reaction time. Neurons that take in information send this information to specific neural networks in different locations.
Sometimes the more telling statistic is the median, instead of the average â but in the age of average, it might take some effort to embrace the more accurate number.
The mean is the arithmetic average, i.e. x1+x2+... +xn mean = ------------- n. The median is the midscore, i.e. the score which is exactly in the middle of all ordered scores. In other words, exactly 50% of the data are less than the median, exactly 50% of the data are larger than the median. For symmetric data (e.g. human heights) median=mean. For skewed (i.e. asymmetric) data, mean and median could be quite different.