Asked by viv

in 1926 the ____ made non-invasive study of the brains possible. a) positron emission tomography (PET) scan b) computer tomography (CT) Scan. c) electroencephalograph (EEG) d) X-ray

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Answered by GPT-5 mini
c) electroencephalograph (EEG)

Hans Berger's recordings of human brain electrical activity in the mid-1920s (published 1929) established the EEG, allowing non‑invasive study of brain function. PET and CT were developed much later; X‑rays (1895) cannot image brain activity.