The factorial structure of schizophrenia symptoms has been much debated but little is known on its degree of unicity, specificity as well as its dynamic over time. Symptom differentiation is a phenomenon according to which patients' symptoms could differentiate from one another during illness to form more independent, distinct dimensions. On the contrary, symptom dedifferentiation is an increase in the correlations between those symptoms over time. The goal of this study was to investigate symptom differentiation or dedifferentiation over time in recent onset psychosis using the Positive and Negative Syndrome Scale. A confirmatory factor analysis model based on the consensus five-factor model of the Positive and Negative Syndrome Scale for ...
AbstractBackgroundThere is considerable variation in progressive brain volume changes in schizophren...
Whether there are distinct subtypes of schizophrenia is an important issue to advance understanding ...
Background: Dimensional structures are established for many psychiatric diagnoses, but dimensions ha...
BACKGROUND: A major problem in quantifying symptoms of schizophrenia is establishing a reliable dist...
BACKGROUND: Psychiatric taxonomists have sometimes argued for a unitary psychosis syndrome and somet...
Psychiatric taxonomists have sometimes argued for a unitary psychosis syndrome and sometimes for a p...
The marked heterogeneity between individuals diagnosed as experiencing schizophrenia has troubled no...
The purpose of this investigation was to examine a proposed two-factor model of schizophrenic sympto...
Schizophrenia presents as a heterogenous disorder characterized by diverse expression of symptoms be...
AbstractNegative symptoms of schizophrenia are normally grouped into a single category. However, the...
The interplay of psychotic and affective symptoms is a crucial challenge in understanding the pathog...
Current diagnostic criteria delineate schizophrenia as a discrete entity essentially defined by posi...
Negative symptoms of schizophrenia represent a heterogeneous psychopathological domain. Both categor...
Negative symptoms of schizophrenia represent a heterogeneous psychopathological domain. Both categor...
Aim: Clinical staging of schizophrenia entails a new method that identifies clusters of symptoms and...
AbstractBackgroundThere is considerable variation in progressive brain volume changes in schizophren...
Whether there are distinct subtypes of schizophrenia is an important issue to advance understanding ...
Background: Dimensional structures are established for many psychiatric diagnoses, but dimensions ha...
BACKGROUND: A major problem in quantifying symptoms of schizophrenia is establishing a reliable dist...
BACKGROUND: Psychiatric taxonomists have sometimes argued for a unitary psychosis syndrome and somet...
Psychiatric taxonomists have sometimes argued for a unitary psychosis syndrome and sometimes for a p...
The marked heterogeneity between individuals diagnosed as experiencing schizophrenia has troubled no...
The purpose of this investigation was to examine a proposed two-factor model of schizophrenic sympto...
Schizophrenia presents as a heterogenous disorder characterized by diverse expression of symptoms be...
AbstractNegative symptoms of schizophrenia are normally grouped into a single category. However, the...
The interplay of psychotic and affective symptoms is a crucial challenge in understanding the pathog...
Current diagnostic criteria delineate schizophrenia as a discrete entity essentially defined by posi...
Negative symptoms of schizophrenia represent a heterogeneous psychopathological domain. Both categor...
Negative symptoms of schizophrenia represent a heterogeneous psychopathological domain. Both categor...
Aim: Clinical staging of schizophrenia entails a new method that identifies clusters of symptoms and...
AbstractBackgroundThere is considerable variation in progressive brain volume changes in schizophren...
Whether there are distinct subtypes of schizophrenia is an important issue to advance understanding ...
Background: Dimensional structures are established for many psychiatric diagnoses, but dimensions ha...