DATA set for PLOS One Hsieh et al. 2016

The auditory system encounters motion cues through an acoustic object’s movement or rotation of the listener’s head in a stationary sound field, generating a wide range of naturally occurring velocities from a few to several hundred degrees per second. The angular velocity of moving acoustic objects relative to a listener is typically slow and does not exceed tens of degrees per second, whereas head rotations in a stationary acoustic field may generate fast-changing spatial cues in the order of several hundred degrees per second. We hypothesized that these two types of systems (i.e., encoding slow movements of an object or fast head rotations) may engage functionally distinct substrates in processing spatially dynamic auditory cues, with the latter potentially involved in maintaining perceptual constancy in a stationary field during head rotations and therefore possibly involving corollary-discharge mechanisms in premotor cortex. Using fMRI, we examined cortical response patterns to sound sources moving at a wide range of velocities in 3D virtual auditory space. We found a significant categorical difference between fast and slow moving sounds, with stronger activations in response to higher velocities in the posterior superior temporal regions, the planum temporale, and notably the premotor ventral-rostral (PMVr) area implicated in planning neck and head motor functions Methods fMRI scanning of human cortex while listening to motion of an auditory source in 3D virtual space.听觉系统可通过声学对象的运动，或静止声场中听者头部的旋转获取运动线索，由此产生每秒数度至数百度的各类自然运动速度。相对听者而言，移动声学对象的角速度通常较为缓慢，最高不超过每秒数十度；而静止声场中的头部旋转则可产生每秒数百度量级的快速变化空间线索。我们提出假设：上述两类编码系统（分别对应声学对象的缓慢运动与头部的快速旋转）在加工空间动态听觉线索时，可能调用功能迥异的神经底物；其中后者或参与维持头部旋转时静止声场中的知觉恒常性，因此可能涉及运动前皮层内的推论性放电机制。本研究采用功能磁共振成像（fMRI）技术，在三维虚拟听觉空间中考察了声源以宽泛速度范围运动时的大脑皮层响应模式。研究发现，快慢运动的声源间存在显著的类别差异：较高速度的运动声音可在后颞上区、颞平面，尤其是参与颈部与头部运动规划的腹侧喙部运动前皮层（PMVr）引发更强的激活。 研究方法：对人类大脑皮层进行功能磁共振成像扫描，扫描期间受试者聆听三维虚拟空间内声源的运动刺激。