Antecedents

Antecedents are physical and cognitive alterations observed in people prior to the onset of schizophrenia, usually in childhood and adolescence, and may be early indicators of illness progression. They are still being investigated, but may include motor and cognitive dysfunction, speech and language impediments, behavioural problems and psychopathology such as anxiety, delusions and hallucinations.

Attention dysfunction

We have not found any systematic reviews on this topic that meet the Schizophrenia Library’s inclusion criteria. Pending enough primary studies, we invite reviews on this topic to be conducted. Alternatively we will endeavour to conduct our own review to fill this gap in the Library. March 2019

Autonomic nervous system anomalies

Behavioural disturbances and psychopathology

What are antecedents? Antecedents such as behavioural disturbances and psychopathology are subtle deviations in development that may become evident during childhood or adolescence. The presence of these deviations may foreshadow the later development of schizophrenia, however most children who exhibit these antecedents do not develop the disorder. Studies exploring antecedents are ideally based on representative, population-based samples that follow the group from birth through childhood and adolescence to adulthood. These studies can provide unique insights into the changes in developmental trajectories that may be associated with schizophrenia. What is the evidence for behavioural disturbances and psychopathology? Overall, moderate quality evidence…

Dermatoglyphic anomalies

We have not found any systematic reviews on this topic that meet the inclusion criteria. Pending enough primary studies, we invite reviews on this topic to be conducted. Alternatively we will endeavour to conduct our own review to fill this gap in the Library. June 2020

Eye tracking anomalies

Face emotion processing anomalies

Height and body mass index

What are antecedents? Antecedents such as abnormal height and BMI are subtle deviations in development that may become evident during childhood or adolescence. The presence of these deviations may foreshadow the later development of schizophrenia, however most children who exhibit these antecedents do not develop the disorder. Studies exploring antecedents are ideally based on representative, population-based samples that follow the group from birth through childhood and adolescence to adulthood. These studies can provide unique insights into the changes in developmental trajectories that may be associated with schizophrenia. What is the evidence for height and BMI? Moderate quality evidence suggests a…

IQ and academic performance

What are antecedents? Antecedents such as poor IQ and academic performance are subtle deviations in development that may become evident during childhood or adolescence. The presence of these deviations may foreshadow the later development of schizophrenia, however most children who exhibit these antecedents do not develop the disorder. Studies exploring antecedents are ideally based on representative, population-based samples that follow the group from birth through childhood and adolescence to adulthood. These studies can provide unique insights into the changes in developmental trajectories that may be associated with schizophrenia. What is the evidence for IQ and academic performance? High quality evidence…

Mild physical anomalies

Motor dysfunction

What are antecedents? Antecedents such as motor dysfunction are subtle deviations in development that may become evident during childhood or adolescence. The presence of these deviations may foreshadow the later development of schizophrenia, however most children who exhibit these antecedents do not develop the disorder. Studies exploring antecedents are ideally based on representative, population-based samples that follow the group from birth through childhood and adolescence to adulthood. These studies can provide unique insights into the changes in developmental trajectories that may be associated with schizophrenia. What is the evidence for motor dysfunction in childhood? High quality evidence finds schizophrenia in…

Olfactory identification deficits

Sleep disturbance

Speech and hearing deficits

What are antecedents? Antecedents such as speech and hearing problems are subtle deviations in development that may become evident during childhood or adolescence. The presence of these deviations may foreshadow the later development of schizophrenia, however most children who exhibit these antecedents do not develop the disorder. Studies exploring antecedents are ideally based on representative, population-based samples that follow the group from birth through childhood and adolescence to adulthood. These studies can provide unique insights into the changes in developmental trajectories that may be associated with schizophrenia. What is the evidence for speech and hearing deficits? Moderate to high quality…

Stress responsivity anomalies

Title Colour Legend:
Green - Topic summary is available.
Orange - Topic summary is being compiled.
Red - Topic summary has no current systematic review available.

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