Structural changes in the brain may short-circuit transfer of information.
D000328:Adult; D000368:Aged; D000375:Aging; D000818:Animals; D001921:Brain / Q000033:anatomy & histology* / Q000502:physiology; D003071:Cognition / Q000502:physiology; D003712:Dendrites / Q000502:physiology; D006801:Humans; D051379:Mice; D008875:Middle Aged; D009043:Motor Activity / Q000502:physiology; D009410:Nerve Degeneration; D009474:Neurons / Q000502:physiology; D051381:Rats