In cats anaesthetized with either barbiturates or chloralose the extension of the cortical projection area of the paraflocculus was investigated. It was found that in both conditions of general anaesthesia, short latency (4.5-12 msec) transient potentials evoked by single shock stimulation of the paraflocculus were elicited, as in unanaesthetized animals, bilaterally in the anterior part of the middle ectosylvian gyrus, the anterior ectosylvian and sylvian gyri and contralaterally in the posterior ectosylvian, anterior suprasylvian and coronal gyri. In chloralosed animals moreover, long latency (20-75 msec) evoked potentials were found upon parafloccular stimulation in the remaining part of the lateral surface of both cerebral hemispheres. No specific projection fields for the different parafloccular folia have been observed.