It Is Still Open To Question Whether

It Has Long Been Known For Sure That The Sight Of Tasty Food Makes A Hungry Man's Mouth Water; Also Lack Of Appetite Has Always Been Regarded As An Undesirable Phenomenon, From Which One Might Conclude That Appetite Is Essentially Linked With The Process Of Digestion.

The Sun-paul Must Consider Only One Thing: What Is The Relation Of This Or That External Reaction Of The Animal To The Phenomena Of The External World?

If We Could Look Through The Skull Into The Brain Of A Consciously Thinking Person, And If The Place Of Optimal Excitability Were Luminous, Then We Should See Playing Over The Cerebral Surface, A Bright Spot With Fantastic, Waving Borders Constantly Fluctuating In Size And Form, Surrounded By A Darkness More Or Less Deep, Covering The Rest Of The Hemisphere.

In The Dog Two Conditions Were Found To Produce Pathological Disturbances By Functional Interference, Namely, An Unusually Acute Clashing Of The Excitatory And Inhibitory Processes, And The Influence Of Strong And Extraordinary Stimuli. In Man Precisely Similar Conditions Constitute The Usual Causes Of Nervous And Psychic Disturbances. Different Conditions Productive Of Extreme Excitation, Such As Intense Grief Or Bitter Insults, Often Lead, When The Natural Reactions Are Inhibited By The Necessary Restraint, To Profound And Prolonged Loss Of Balance In Nervous And Psychic Activity.

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