The signs and symptoms of<unk>  can be indicated by dysexecutive syndrome which consists of a number of symptoms which tend to occur together. Broadly speaking, these symptoms fall into three main categories; cognitive (movement and speech), emotional or behavioral. Although many of these symptoms regularly co-occur, it is common to encounter patients who have several, but not all of these symptoms. This is one reason why some researchers are beginning to argue that dysexecutive syndrome is not the best term to describe these various symptoms. The fact that many of the dysexecutive syndrome symptoms can occur alone has led some researchers to suggest that the symptoms should not be labelled as a "syndrome" as such. Some of the latest imaging research on<unk>  cortex areas suggests that executive functions may be more discrete than was previously thought. Signs/symptoms can be divided as follows:
Frontal lobe disorder
Diving disorders
Episodic dyscontrol syndrome
Tic disorder
Impulse-control disorder
Motivational deficiency disorder
Communication disorder
Spectrum disorder