Effect of septal forebrain lesions on soluble fibrin monomer complexes in blood.

Soluble fibrin monomer complexes (FM) in blood were measured in septal forebrain lesioned rats on the 4th, 12th, 17th and 21st postoperative days by using the protamine sulfate-induced precipitation method. It was found that septal lesions resulted in a statistically significant increase of FM as compared to the control sham lesioned animals. This increase was positively correlated with heightened emotional reactivity induced by septal lesions. The results obtained suggest that damage to the septal forebrain area may activate the process of intravascular coagulation.