ISSN (ONLINE): 3107-7862
jkpo; irf;fpahl;hp [h;dy; Vg;uy;-[_d; 2026
31
   
   
   
   
18
 
30

70
  
  
   
   
    
   
   
   
  
    
  
   
   
   
  
    
  
   
   
    
 
 
  
    
   
  
   
  
    
  
 
Positive Symptoms:
 Hallucinations:
  
 
(Hallucination)

   
    
    
  
 
Hallucination


Auditory Hallucination:
  
     
  
Auditory Hallucination
     
   
    
   
  
(Running
Commentary)
  
  
    
    
   
    
    
  
   
    
   
  
 
    
Command Hallucination
  
  
   
Schizophrenia
Aetiology, Symptomatology and Suicidal risk
Dr.
kNf\; uh[Nfhghy;
MBBS, MRC Psych.(UK),
kdey kUj;Jth;> mwk; kUj;Jtkid> jpUr;rp.
Tamil Psychiatry Journal, Vol-2, Issue-2, Apr-Jun 2026, Page 31-35
ISSN (ONLINE): 3107-7862
jkpo; irf;fpahl;hp [h;dy; Vg;uy;-[_d; 2026
32
    
    
   
   
  
 

(Second Person Hallucination)
   
(Third
Person Hallucination)
  
    
   
 
(Thought echo).
Visual Hallucination:
  
    
  Visual Hallucination
    
   
    
 
Tactile Hallucination:
 
    
   
   
    
   
Tactile
Hallucination
 
 Delusions:
Delusions
  
   
  
   
   
   
   
    
  
    
  
   
  

Paranoid Delusion:
 
  
   
  
Paranoid
Delusion
 

Delusional Misinterpretation:
 
   

Delusional Misinterpretation



    
     
    
   
 

Grandiose Delusion:
 
   
 
Grandiose Delusion

    
   
   
  
Grandiose
Delusion


Somatic Delusion
  
     
   
   
  
  
    
   
  
  
   
  
   
  
  
   


Delusion of Reference:
 
  
  
  
   
   
   
ISSN (ONLINE): 3107-7862
jkpo; irf;fpahl;hp [h;dy; Vg;uy;-[_d; 2026
33
   
   


Erotomanic Delusion:
 
     
  
   
    
  



   
  
    
   
 Formal thought disorder:
  
   
   
    
    
   
 
Formal Thought Disorder


.Negative Symptoms:
   
  
   
  
   
  
    
    
   
    
  
Negative symptoms
 
Aetiology 
  
   
   
    
   
    
  
10%

    
  
   

40%
  
 
  
100%

  
   
   
40-50%
  
 
108

   
 
DISC1
NRG1, DTNBP1,
KNCNH2, AKT1

RGS4

   
   
 
  
    
   
   
   
    
Dutch)
    
   
  
   
  
   
  
  

5
   
   
   
   
   

   
  
  
15

17
 
   
ISSN (ONLINE): 3107-7862
jkpo; irf;fpahl;hp [h;dy; Vg;uy;-[_d; 2026
34

24
  
  

Suicide Risk in Schizophrenia:
   
 40%   
   
    
   
  
10%
  
 1971-  
  
   
   
  
   
    
   
    
   
  
Hallucination

Delusion
  
   

Psychosis

    
   
  
   
 
  
   
   

  
   
  
   
    
    
   
  
 
72%
 
  
  
3.5

3.7
 
  
   
 
Depression/Stress

    
   
    
  
  
    
  
  
   
Psychosis
    

  
  
    
   
   
   
   
   
   
  
 
  
  
   
   
 
  
    
  
  
  
   

ISSN (ONLINE): 3107-7862
jkpo; irf;fpahl;hp [h;dy; Vg;uy;-[_d; 2026
35
References:
1. Rantala, M. J., Luoto, S., Borráz-León, J. I., & Krams, I. (2022). Schizophrenia: The new etiological
synthesis. Neuroscience and biobehavioral reviews, 142, 104894.
https://doi.org/10.1016/j.neubiorev.2022.104894
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