Murmur — puppets of psy-radiation?

[previewyoutube][/previewyoutube][p] According to a fragment of the radio communications, when the S.S.P.P. activated a psy-suppressor over the department store in Pripyat, Murmur became disoriented. Does this mean they lose coordination without their usual psy-background? Or is it much more complicated than that?[/p]