Cognitive research reveals that thought impairments; such as disorganised thinking and poor attentional control, play a key role in the development of the schizophrenia. Thus, it is suggested that schizophrenia may surface due to a deficiency in selective attention, such that the symptoms arise from the poor ability to concentrate (McKenna, 1996). Frith’s (1979) ‘Attention Deficit Theory’ links schizophrenia to a faulty attention system. Stemming from cognitive roots, Frith’s theory states schizophrenia is developed consequently as a result from the inability to breakdown thought filtering processes. In line with McKenna (1996), these cognitive symptoms experienced by individuals with schizophrenia, such as disordered thought impressions, are,
