This document provides information about attention and attention span. It defines attention as the process of concentrating on a specific topic or object. It discusses the determinants of attention, including external factors like the nature, intensity and movement of a stimulus as well as internal factors such as interest, motives, mindset and moods. It describes two types of attention: non-volitional/involuntary attention that occurs without willpower and volitional/voluntary attention that requires conscious effort. Finally, it defines attention span as the amount of time a person can focus on a single task and notes that a short attention span is a symptom of conditions like ADD and ADHD.