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Latent inhibition (LI) consists of retardation in conditioning to a stimulus as a consequence of its prior non-reinforced pre-exposure. In view of findings that LI is disrupted in acute schizophrenic patients and evidence from animal experiments pointing to the involvement of the mesolimbic dopamine (DA) system in this phenomenon, the present study(More)
The effects of bilateral electrolytic lesions of the "shell" subterritory of the nucleus accumbens in the rat were examined on 2 tasks known to be sensitive to hippocampal damage. Experiment 1 tested the effects of shell lesion on delayed non-matching-to-sample (DNMS) task in a T-maze. The maze was rotated 180 degrees after the end of acquisition.(More)
OBJECTIVES To investigate the clinical characteristics and pre- biopsy provisional diagnoses of benign oral mucosal tumors. MATERIAL AND METHODS A 10- year retrospective analysis of all benign tumors of the oral mucosa, from a university- affiliated oral and maxillofacial surgery department. RESULTS 146 benign tumors were included. The mean age was 49.6(More)
Continual refinements of the surgical technique and instrumentation for the intraoral vertical ramus osteotomy have made it a preferred procedure for mandibular setback, especially in asymmetrical cases. However, there may be intraoperative difficulty in lateral positioning of the proximal segment, which is frequently trapped medially. Three techniques for(More)
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