Modulation of tonic immobility in guinea pig's anterior cingulate cortex by homocysteic acid, a glutamate agonist. - Coutinho, M. R.; Brentegani, Mariulza Rocha; Menescal-de-Oliveira, Leda (Congresso IBRO/LARC de Neurociências da América Latina, Caribe e Península Ibérica, 2008)