self-confinement

noun3

1. •
   Self-imposed restriction of movement to a particular location.

   • Nothing short of the lifelong self-confinement in the innermost chamber of a deserted cellar, of which he speaks to Felice, would seem to satisfy such rigorous requirements for concentration. — 2002
2. •
   A restriction in the movement of particles due to their internal properties (such as charge).

   • The backbone of the DSA is a self-confinement of accelerated particles by scattering off various magnetic perturbations that particles drive by themselves while streaming ahead of the shock. — 2014
3. •
   An internalized restriction of one's emotions and behavior to a limited range that is considered acceptable; an inability to fully express oneself.

   • There is no self-confinement that is not narcissistic. — 2017