Schizophrenia is associated with changes in the structure and functioning of a number of key brain systems, including prefrontal and medial temporal lobe regions involved in working memory and declarative memory, respectively.
The exact causes of schizophrenia are unknown. Research suggests a combination of physical, genetic, psychological and environmental factors can make a person more likely to develop the condition. Some people may be prone to schizophrenia, and a stressful or emotional life event might trigger a psychotic episode.
Altogether, they found that individuals with schizophrenia have smaller volume in the hippocampus, amygdala, thalamus, nucleus accumbens and intracranial space than controls, and larger pallidum and ventricle volumes.
On average, schizophrenic people show reduced memory, attention span, executive functioning, and reaction time compared to normal people. They have relatively more difficulty recalling things they learned five minutes before than normal people, for example, but are equally able to recall long-term memories.
Schizophrenia has been described as the “worst disease” to afflict mankind. It causes psychosis, which is an abnormal state of mind marked by hyperarousal, overactivation of brain circuits, and emotional distress. An untreated episode of psychosis can result in structural brain damage due to neurotoxicity.
Can a brain scan show schizophrenia? It is not currently possible to determine that a person has schizophrenia simply by looking at a brain scan, but certain changes in the brain that can be observed on a brain scan have been associated with schizophrenia.
Schizoaffective disorder.
People with schizoaffective disorder have the same symptoms as people with schizophrenia. But they also have episodes of depression and times when they feel extremely happy or have lots of energy (mania). For more information, see the topics Depression and Bipolar Disorder.
It is now generally accepted that schizophrenia is associated with structural brain abnormalities, with the most consistent findings being enlarged lateral ventricles and reduced medial temporal and prefrontal lobe volumes.
A new study using specialized MRI scans provides evidence that patients with schizophrenia actually possess the ability to reorganize and battle the mental illness .
There is no one genetic cause of schizophrenia; no one has the “schizophrenia gene.” Rather, there are what the Mayo Clinic calls “a complex group of genetic and other biological vulnerabilities.” A person isn't born with schizophrenia, but there are certain neurochemical conditions that make them candidates for its ...
In the past, it was accepted that schizophrenia can worsen as people age. However, research in recent years suggests that although some symptoms may get worse with age, others will remain stable, and some symptoms may actually improve with age.
Auditory hallucinations, “hearing voices,” are the most common in schizophrenia and related disorders. Disorganized thinking and speech refer to thoughts and speech that are jumbled and/or do not make sense. For example, the person may switch from one topic to another or respond with an unrelated topic in conversation.
Unfortunately, most people with schizophrenia are unaware that their symptoms are warning signs of a mental disorder. Their lives may be unraveling, yet they may believe that their experiences are normal. Or they may feel that they're blessed or cursed with special insights that others can't see.
In patients with schizophrenia, MR imaging shows a smaller total brain volume and enlarged ventricles. Specific subcortical regions are affected, with reduced hippocampal and thalamic volumes, and an increase in the volume of the globus pallidus.
Such overlaps occur in bipolar disorder and schizophrenia, sometimes making it difficult to differentiate between the two. However, these conditions are distinct from one another, and they do not always co-occur. While bipolar disorder cannot develop into schizophrenia, it's possible to experience symptoms of both.
1. Psychosis susceptibility syndrome: an alternative name for schizophrenia.
A common schizophrenia delusion type is the paranoid delusion. Another word for these are persecutory delusions. These are delusions where a person believes they are being harassed, harmed, or otherwise watched by others.
Personality disorders such as antisocial, borderline, histrionic, narcissistic, avoidant, dependent and obsessive-compulsive types have been detected in one third to one half of schizophrenia patients (Nielsen, Hewitt & Habke, 1997; Solano & Chavez, 2000).
Schizophrenia is a chronic and severe mental disorder that is characterized by psychotic symptoms and greatly affects how an individual feels, thinks, behaves and perceives reality. Auditory hallucinations (hearing voices) and delusions (false beliefs) are the hallmarks of this disorder.
Most commonly though, people diagnosed with schizophrenia will hear multiple voices that are male, nasty, repetitive, commanding, and interactive, where the person can ask the voice a question and get some kind of answer.”
Schizophrenia can usually be diagnosed if: you've experienced 1 or more of the following symptoms most of the time for a month: delusions, hallucinations, hearing voices, incoherent speech, or negative symptoms, such as a flattening of emotions.