For example, in reference to the WWI experience in specific:
> Some men with shell shock were put on trial, and even executed, for military crimes including desertion and cowardice.[16] While it was recognised that the stresses of war could cause men to break down, a lasting episode was likely to be seen as symptomatic of an underlying lack of character.[17] For instance, in his testimony to the post-war Royal Commission examining shell shock, Lord Gort said that shell shock was a weakness and was not found in "good" units.[17] The continued pressure to avoid medical recognition of shell shock meant that it was not, in itself, considered an admissible defence. Although some doctors or medics did take procedure to try to cure soldiers' shell shock, it was first done in a brutal way. Doctors would provide electric shock to soldiers in hopes that it would shock them back to their normal, heroic, pre-war self. While illustrating cases of mutism in his book Hysterical Disorders of Warfare, therapist Lewis Yealland describes a patient who had, over the course of 9 months, been subjected unsuccessfully to numerous treatments for his mutism; these included strong application of electricity to his throat, lit cigarette ends applied to the tip of his tongue, and "hot plates" placed in the back of his mouth.[18]
> Some men with shell shock were put on trial, and even executed, for military crimes including desertion and cowardice.[16] While it was recognised that the stresses of war could cause men to break down, a lasting episode was likely to be seen as symptomatic of an underlying lack of character.[17] For instance, in his testimony to the post-war Royal Commission examining shell shock, Lord Gort said that shell shock was a weakness and was not found in "good" units.[17] The continued pressure to avoid medical recognition of shell shock meant that it was not, in itself, considered an admissible defence. Although some doctors or medics did take procedure to try to cure soldiers' shell shock, it was first done in a brutal way. Doctors would provide electric shock to soldiers in hopes that it would shock them back to their normal, heroic, pre-war self. While illustrating cases of mutism in his book Hysterical Disorders of Warfare, therapist Lewis Yealland describes a patient who had, over the course of 9 months, been subjected unsuccessfully to numerous treatments for his mutism; these included strong application of electricity to his throat, lit cigarette ends applied to the tip of his tongue, and "hot plates" placed in the back of his mouth.[18]
https://en.wikipedia.org/wiki/Shell_shock