Brain surgery and necropsias in Neolithic Western Europe?

[Truth-Finder]

I atemp a cheese translation bellow of an excerpt from the book "Les mégalithes, Pierres de Mémoire" by Jean-Pierre Cohen, pages 94 & 95 - For original text see attachment
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Trepinations: pathological surgery or ritual practice on human bones

Trepination on human skulls reveals how much they feel concerned for knowledge of man and his environement - Beyond that, it suggest that neolithic men were concious of the role played by the Brain in human behaviour. The neolithic men who buried their kinsmen in the megalithic monuments were able to extract the carious teeth and when necessary, to carry out trepanning operations with succes, as the pateint survived in many instances. That is what have discovered the first excavators such as baron Joseph de Baye as early as 1872 in the underground vaults of la Marne. They discovered trepinated skulls and many of them presented bony rings, proof that the trepinated man had survived the operation. They also found collars made with bone disks coming from the trepinated part of the skull.
A serie of skull coming fro mthe megalithic tombs of odez show that trepanning operations were quite common during the neolithic whence during the Rennaissance period, Ambroise Paré warned about the difficulty of such operation with special stress on how to limit bleeding on the head, on cauterizing the wound in order to avoid infection and on washing the blood out of the wound with cloths soaked in vinegar in order to avoid putrefaction.
In the corridor of Tumulus (barrow) A, at Bougon was discovered a cranium vault dating back to 4000 BC presented 3 successive trepinations. During the first operation a round disk was extracted from the left occipital bone, in an oblique direction caring thus to not touch the brain. This operation was most probaly done in order to heal the patient from headhaches du to a malformation on the axial occipital cannal. The man survived to the operation as according to anthropologists he lived some ten years more after it. A second operation has been made later as the first ablation has been enlarged with a second oval one - The man still suffred from headaches?.
It seems that a post mortem autopsy was practised on the man as large portions from the parietal and the frontal bones has been extracted with silex tools and this time, evidences are that no special care was taken in order to spare the endocranial organs.
Three other cases of post-mortem autposies has been documented, one at Cibournis (Lozère, S France) and two other at Le Petit Morin Valley (Marne, France). These cases are evidences of how curious was the neolithic man about the mechanics of the living human body. This curiosity was expressed even after death trough several post mortem practics and secondary treatments on the human bones (the skull in particular) which gave them the status of Relics