Visual evoked potentials in three representative groups of prisoners of war released from Serbian detention camps

Pattern shift reversal type visual evoked potentials were determined in three representative groups of prisoners of war, released from Serbian, detention camps during the tear in Croatia 1991/92. The first group (Group I) comprised 22 prisoners of war in whom VEPs were determined 10-60 days after release. The second group (Group II) comprised 24 prisoners of war in whom VEPs were determined 6-9 months after release, and the third group (Group III) comprised 22 prisoners of war in whom VEPs were determined 12-18 months after release. A control group consisted of 36 subjects. Compared to the control group, significantly increased amplitudes of waves P50, N75, P100 and Latencies of wave N145 were found in Group I, significantly increased amplitudes of P50 wave and latencies of waves P50, N75 and N145 were found in. Group II and significantly increased amplitudes of wave N145 and latencies of P50, N75, P100, N145 in. Group III. If the greater significance of the latency changes compared to the changes in. amplitudes of the same VEP, waves are considered the results can be interpreted as progression of these changes. This was confirmed by the significantly greater number of VEP parameters in all three groups of released prisoners with findings outside 2SD of the same parameters in the control group, and also by the significantly greater number of such parameters in Group II in relation to Group I and in Group R7 in relation to Group II.