...have the power of directing or concentrating nervous energy, raising or depressing it in a remarkable degree, at will, locally or generally. That in this state, we have the power of exciting or depressing the force and frequency of the heart's action, and the state of circulation, or generally, in a surprising degree. (James Braid)

...have the power of directing or concentrating nervous energy, raising or depressing it in a remarkable degree, at will, locally or generally. That in this state, we have the power of exciting or depressing the force and frequency of the heart's action, and the state of circulation, or generally, in a surprising degree.

James Braid

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action circulation degree force frequency power state surprising

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