MOTOR NEURON DISEASE By N., Sam M.S. - 0 describes any of the diseases or conditions which result in the progressive weakness and wasting of skeletal muscle and eventual paralysis. One such condition is called amyotrophic lateral sclerosis. MOTOR NEURON DISEASE: "Motor neuron disease is a group of conditions which directly affect an individuals motor system." Related Psychology Terms DEMYELINATING DISORDERS MENTAL RETARDATION (CAUSES) AMYOTROPHIC LATERAL SCLEROSIS (ALS) CEREBRAL CORTEX BRAIN DISORDERS SCLEROSIS CHILD PSYCHIATRY PSYCHOPHYSIOLOGIC DISORDERS (GENERAL) BENDER GESTALT TEST (Bender Visual-Motor Gestalt Test) SOCIAL NORM (Group Norms) Cite this page: N., Sam M.S., "MOTOR NEURON DISEASE," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/motor-neuron-disease/ (accessed October 4, 2022).