Dictionary.com
Thesaurus.com

peripheralism

American  
[puh-rif-er-uh-liz-uhm] / pəˈrɪf ər əˌlɪz əm /

noun

Psychology.
  1. the explanation of psychological events emphasizing peripheral human functions, such as those of skeletal muscles or sexual organs, rather than cognition or other processes of the central nervous system.


Etymology

Origin of peripheralism

peripheral + -ism