When wathcing the European Championship athletics, I hear many people talking about being in a "flow". Flow is defined as follows:
Flow is an optimal psychological state that occurs when there is a balance between perceived challenges and skills in an activity (Csikszentmihalyi, 1990). It is a state of concentration so focused that it amounts to absolute absorption in an activity. 1
This sound nice, but to me it is still a quite abstract definition and it is not really clear to me how being in a flow works. Is there a more low level (cognitive) explanation of being in a flow?
I thought that this paper could shine some light on the subject, but I am unable to access it.