Threshold noise

Threshold noise serves two purposes in the network. It allows for variability to occur in the time at when ``No'' responses are made. Because of this property, it can allow for the generation of false alarms. Were the temporal threshold to be a constant, greater than the time taken for nearly all words to be recognized, very few false alarms would be created. Because the threshold for ``No'' responses is allowed to vary into the range at which words are detected, sometimes false alarms can occur in the network.