Syam K.R * 
          Abstract 
          
            In  this paper I will try to analyze various therapy systems on the basis of their  effectiveness in bringing about changes in structure (brain) and function  (consciousness) of mind in the desired way. As neuropsychology claims I also  believe there should be some changes (either at structural or functional) at  the neuronal level in order to establish a change. This study will critically  evaluate the prominent and well-established psychotherapies like psychodynamic,  behaviouristic, cognitive, and gestalt approaches. This study will be done on  the basis of an in-depth analysis of the principles governing each theory as  well as on the basis of relevant researches in the field. As a result, I will  be able to assess the comparative efficacy of each systems of psychotherapy in  bringing about alteration in brain and consciousness.
          
          Keywords:  Consciousness; Brain; Neuropsychology; Psychotherapies, Psychodynamic,  Behaviouristic, Cognitive, Gestalt.
          
          *Postgraduate Student in MSc. Clinical & Counseling  Psychology, School of behavioral Sciences, Kannur University, Kannur Dist ,  Kerala , India.
            Email:  syamkravindran@gmail.com
                    
          
Final Accepted 2 Workshop 27 Nov  2009