TY - GEN AU - Jääskeläinen,I P AU - Varonen,R AU - Näätänen,R AU - Pekkonen,E TI - Decay of cortical pre-attentive sound discrimination in middle-age SN - 0959-4965 PY - 1999///0525 KW - Acoustic Stimulation KW - Adolescent KW - Adult KW - Aged KW - Aged, 80 and over KW - Aging KW - psychology KW - Attention KW - physiology KW - Auditory Cortex KW - Functional Laterality KW - Humans KW - Linear Models KW - Magnetoencephalography KW - Middle Aged KW - Pitch Discrimination KW - Reaction Time N1 - Publication Type: Clinical Trial; Controlled Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't ER -