Physiological Correlates and Neural Mechanisms of Vocal Communication

1.今年开始的两项研究利用 无创磁共振成像方法(MRI) 检查活着的大脑的结构细节。一项研究，在 与LDRR的合作，涉及高分辨率成像 在成年普通绒猴的大脑上，作为 构建该物种的脑图谱。第二项研究，在 与南方医科大学的研究人员合作 Carolina已经使用功能磁共振(FMRI)来绘制活动变化图 在听着婴儿哭声的母亲的大脑中。这项研究仍在进行中 进展，但初步结果表明，前扣带回 和邻近的眼眶额叶皮质被不同地激活，当 与由类似的噪声突发组成的控制刺激相比 时间结构对婴儿哭闹的刺激。2.声乐分析 幼年恒河猴消融后的行为 颞下皮质(TE区)显示出许多 它们叫声的声学结构异常。牵涉到 灵长类发声中的新皮质结构以前从未出现过 据报道。

1. Two studies begun this year utilize the noninvasive magnetic resonance imaging methodology (MRI) to examine structural details of the living brain. One study, in collaboration with the LDRR, involves the high-resolution imaging on the brain of adult common marmosets, as part of the construction of a brain atlas for this species. A second study, in collaboration with investigators at the Medical University of South Carolina, has used functional MRI (fMRI) to map activity changes in the brains of mothers listening to infant cries. This study is still in progress, but initial results indicate that the anterior cingulate gyrus and adjacent orbital frontal cortex are differentially activated, when compared to control stimuli consisting of noise bursts with similar temporal structure to the infant cry stimuli. 2. Analysis of the vocal behavior of infant rhesus macaques following neonatal ablation of the infero-temporal cortex (area TE) showed a number of abnormalities in the acoustic structure of their calls. Involvement of a neocortical structure in primate phonation has not previously been reported.