Negative symptoms of schizophrenia include:
- Minimal facial expressions
- Lack of emotional expression
- Reduced or confused speech
- Little motivation
- Difficulty with concentration and follow-through
Additional symptoms of schizophrenia include:
- General lack of focus
- Poor personal hygiene
- Poor memory
- Difficulty with understanding information and executing learned skills
- Social withdrawal
Schizophrenia can run in families. But, this does not mean that if someone in a family has the disorder, other family members will develop it. In fact, different studies suggest there are multiple genes involved that may predispose someone toward developing schizophrenia.
It is believed that environmental factors like poverty, traumatic events, exposure to viruses, abuse, abandonment, nutritional problems before birth, and stressful surroundings may play a role in the development of schizophrenia. While the issues that may trigger schizophrenia usually take place during childhood, symptoms may not present until later in life.
Scientists believe irregularities in brain function, structure, and interactions between neurotransmitters can contribute to the development of schizophrenia. Also, hormonal imbalances may play a role in its development.