Cognition
Cognitive psychology refers to all processes by which the sensory input is transformed, reduced, elaborated, recovered, and used.
Everyone knows what attention is. It is the taking possession by the mind, in clear and vivid form, of one out of what seem several simultaneously possibly objects or trains of thought. Focalization, concentration of consciousness are of its essence.
My problem is that I have been persecuted by an integer. For seven years this number has followed me around, has intruded in my most private data, and has assaulted me from the pages of our most public journals.