**2. Factors involved in the development and maintenance of gambling disorder**

Raylu and Oei [6] consider that there are three categories of factors that can contribute to the emergence and development of gambling disorder: family-related factors, individual factors, and sociological factors.

In terms of **family factors**, specialized studies in the field have demonstrated that both parental models of behavior and genetic factors represent for any gambler at the risk to develop a compulsive gambling behavior [7–8].

**Individual factors** are involved in the emergence and maintenance of the gambling disorder and they include the gamblers' personality traits (especially impulsivity and sensationseeking), his/her cognitions (the ability to influence or predict gain), negative emotional states (depression, anxiety or stress), and biological factors (frontal lobe deficits, neurotransmitter malfunctions, and changes in the functioning of the brain's reward system).

**Sociological** factors which are tied to the emergence of gambling disorder refer to the existence of a socio-economic status of the gamblers, unemployment, and a lower education level.
