Psychologically, hesitation can be described as "the period of inactivity during which the struggle amongst the nascent activities of different mechanisms is proceeding, during which the nascent activities of the mechanisms is alternating". Although hesitation is a form of pause, not all pauses are instances of hesitation. A pause may serve some other purpose, and it has been noted that "the term pause sometimes implies a more or less 'regular' feature of production, whereas hesitation implies an irregularity, an intrusion or disruption in production". Hesitation has been described as "one of the most difficult habits for the student to overcome". Hesitation can be observed in animals. For example, in the third week of training a dog to come when signaled by its owner: In humans, hesitation can be attributed to many causes.
Stanton Marlan writes more positively of the phenomenon that "I imagine hesitation as being a fecund opening, a gateway to the unconscious and to the nothingness of which
Derrida speaks. It is a nothingness that enriches both the dialectical process of analysis and our theoretical speculation". He describes hesitation in this context as "also a deepening of interiority and psychological space". According to psychologist,
James Hillman, "[t]his increased interiority means that each new ... inspiration, each hot idea ... will first be drawn through the labyrinthine ways of the soul, which wind it and slow it and nourish it from many sides". ==Philosophy and morality==