At  present,  most  of  the  effects  on  the  cognitive 
function of schizophrenia patients are mostly focused 
on drug research. For example, Hu Yi et al. concluded 
in  2021  that  Shugan  granules  or  aripiprazole 
treatment  can  effectively  improve  women’s  first-
episode schizophrenia. Causes the cognitive function 
of  patients  with  hyperprolactinemia,  and  Shugan 
Granules  are  better  than  aripiprazole  in  improving 
cognitive  function  (Hu  et  al  2016).  Part  of  the 
research focuses on physiological factors such as age, 
education level, age of first onset, length of disease, 
genetic  factors  and  so  on.  However,  there  is  little 
research  on  the  impact  of  social  support  on  the 
cognitive function of patients with schizophrenia, and 
the  influencing  factors  are  analyzed  from  the 
perspective of biology and medicine (Wang 2019). 
In  China,  the  main  treatment  for  schizophrenia 
patients  is  hospitalization  and  drug  therapy. Due  to 
the  particularity  of  the  inpatient  treatment 
environment,  it  is  difficult  for  patients  with 
schizophrenia  to  communicate  fluently  with  the 
outside world except  for  medical staff and visitors, 
which has certain similarities with empty-nesters and 
has  certain  limitations  of  information  exchange. At 
the  same  time,  in  the  social  support  theory  and 
Maslow's  hierarchy  of  needs  theory,  social  support 
plays  an  indispensable  positive  role  in  the 
improvement  of  individual  cognitive  function. 
Therefore, it is necessary to explore the influence of 
social  support  on  the  cognitive  function  of 
schizophrenia  patients  from  the  psychological 
perspective. 
2  RESEARCH STATUS 
Cognitive function is closely related to social support, 
age, gender, education level and other factors. Some 
scholars  have  concluded  from  the  influence  of  the 
cognitive  function  of  the  elderly  in  the  community 
that with the growth of age, the protective effect of 
social support on the cognitive function of the elderly 
is  more  and  more  important,  and  put  forward 
suggestions such as community and children should 
accompany the elderly and improve the recreational 
facilities for the elderly in the community (CAI et al 
2011). Jiao Can, Yin Fei, Shen Xiaofang and Huang 
Yufu  concluded  in  2020  that  social  support  is 
significantly correlated with the cognitive function of 
the elderly, and the higher the level of social support, 
the lower the incidence of cognitive impairment, and 
the higher the level of social support, the lower the 
loneliness  and  depression  (Jiao  et  al  2020). Fan 
Shuming,  Wang  Yixin  and  Jiao  Can  concluded  in 
2021  that  the  perceived  social  support  of  "elderly 
drifters"  can  protect  cognitive  function  by  reducing 
loneliness,  and  this  process  is  regulated  by 
psychological  resilience  (Fan  et  al  2016). In  the 
interactive model of schizophrenia, social support is 
assumed  to  be  a  protective  factor  contributing  to 
coping and competence, thus moderating the harmful 
effects of social and environmental stressors (Yuan et 
al  2019). In  addition,  Chen  Liping  showed  in  her 
study  on  the  influence  of  cognitive  function  on 
patients  with  chronic  schizophrenia  in  2020  that 
comprehensive nursing with increased social support 
plays  a  role  in  promoting  the  improvement  of 
cognitive  function  of  patients  with  schizophrenia 
(Chen 2020). It also  indicates that  social  support  is 
very important to explore the influencing factors of 
cognitive  function  in  schizophrenia patients. On  the 
whole, in recent years, studies on the impact of social 
support  on  cognitive  function  have  been  analyzed 
from  the  perspective  of  psychology.  Most  of  the 
research objects are the elderly, while there are few 
studies  on  the  impact  of  social  support  on  the 
cognitive  function  of  patients  with  schizophrenia 
(Zhou 2017, Zhang 2018). 
The  concept  of  social  support  originates  from 
Bowby's attachment theory, and began to be used in 
the clinical treatment of psychiatry in the 1960s. By 
the  1970s  and  1980s,  the  Application  of  social 
support  was  promoted  to  various  aspects  in  the 
United States. According to the different nature of the 
resources  provided  by  social  support,  foreign 
scholars  divide  it  into  four  categories:  emotional 
support, information support, friendship support and 
instrumental  support. After  years  of  transnational 
collaborative  research,  some  foreign  mental  health 
experts  believe  that  the  maintenance  and 
consolidation  of  social  support  network  is  most 
directly  related  to  mental  health  and  quality  of  life 
(Chen 2019). 
Research  on  the  cognitive  function  of 
schizophrenia abroad has been earlier and has yielded 
certain  results.  For  example,  Owen,  Sawa  and 
Mortensen proposed in the study of schizophrenia in 
2016  that  the  cognitive  syndrome  of  schizophrenia 
originates from the combined effect of genetics and 
environment  (Owen,  Sawa  &  Mortensen  2016). 
Some scholars have found that zotipine and clozapine 
have  different  effects  on  the  cognitive  function  of 
patients with schizophrenia (Gallhofer et al 1996). In 
addition,  foreign  scholars  have  discussed  the 
influence of social psychology on cognitive function 
in  the  study  of  schizophrenia's  motivation  and  the 
relationship  between  neurocognition,  social 
cognition  and  functional  outcome  (Melissa  et  al