In psychology, philosophy, and their many subsets, emotion is the generic term for subjective, conscious experience that is characterized primarily by psychophysiological expressions, biological reactions, and mental states. Emotion is often associated and considered reciprocally influential with mood, temperament, personality, disposition, and motivation, as well as influenced by hormones and neurotransmitters such as dopamine, noradrenaline, serotonin, oxytocin, cortisol and GABA. Emotion is often the driving force behind motivation, positive or negative. An alternative definition of emotion is a "positive or negative experience that is associated with a particular pattern of physiological activity."
Although Haiti averages approximately 255 people per square kilometer (650 per sq. mi.), its population is concentrated most heavily in urban areas, coastal plains, and valleys. About 80-85% of Haitians are of predominantly West African descent. The remainder of the population is primarily mulattoes. There are sizeable Arab, Asian and European communities. Hispanic residents in Haiti are mostly Cuban and Dominican. About two thirds of the Haitian population live in rural areas.
Although there was a national census taken in Haiti in 2003, much of that data has not been released to the public. Several demographic studies, including those by social work researcher Athena Kolbe, have shed light on the current status of urban residents. In 2006, households averaged 4.5 members. The median age was 25 years with a mean average age of 27 years. People aged 15 and younger counted for roughly a third of the population. Overall, 52.7 percent of the population was female.