Medical devices, namely, pulse generators for the field of neurology to generate closed loop neuroelectric stimulation impulses complementary to real-time measured afferent electrical impulses through the skin to therapeutically modulate a dysfunctional brain cerebello-thalamo-cortical circuit for tremor reduction; stand-alone wearable devices for use in neurology in treating tremors non-surgically; stand-alone wearable devices for operating in a closed loop measurement and generation circuit enabling generation of neurologically-effective electrical energy to the brain; stand-alone therapeutic devices worn throughout the day in a closed loop measurement and generation circuit enabling generation of neurologically-effective electrical impulses to the brain without online communication connectivity and without downloads of data from any outside source; stand-alone therapeutic devices worn on the wrist throughout the day in a closed loop measurement and generation circuit enabling generation of neurologically-effective electrical impulses to the brain without online communication connectivity and without downloads of image data from any outside source; wearable stand-alone accelerometers that, in a closed loop circuit, measure physical acceleration to generate complementary neuroelectric stimulation impulses through the skin to therapeutically modulate a dysfunctional brain in the treatment of tremors.