"Headposts"...
In a laboratory at Rockefeller University in New York, two monkeys, known only as M1 and M2, spend their lives subjected to experiments designed to map the brain cells involved in facial recognition.
Through invasive experiments that turn living, sentient individuals
into recording devices, M1 and M2, aged 8 and 7, have undergone
multiple brain surgeries to insert cranial implants and an attached
headpost, followed by surgeries to implant electrodes for fMRI
guided electrophysiology studies.
Non-animal alternatives can teach us about the workings of the
human brain and offer promise for human patients suffering from
brain abnormalities.
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Please read the ENTIRE ARTICLE HERE (PDF).