Implants May Improve Therapy For Neurological Disorders

A clarification: I am not a doctor

But isn't "Neuro-Degenerative Disorder" imply symptoms that arise from the death of brain cells (for whatever reason) ?

If that's so, how can any implant "stimulates" brain activities _after_ the crucial brain cells have croaked ?

Would appreciate very much of any and all elaboration !!
?

Source: http://rss.slashdot.org/~r/Slashdot/slashdotScience/~3/ah4T4_dqpfo/implants-may-improve-therapy-for-neurological-disorders

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