The relation between functional magnetic resonance imaging activations and single-cell selectivity in the macaque intraparietal sulcus

摘要: Previous functional magnetic resonance (fMRI) studies in humans and monkeys have demonstrated that the anterior intraparietal sulcus (IPS) is sensitive to depth structure defined by binocular disparity. However, macaque monkey, a single large activation was measured lateral bank of IPS, whereas human subjects two separate regions were from We performed fMRI single-cell experiments same animals, number recording sites IPS. The interaction effect between factors curvature (curved or flat) disparity (stereo control) correctly predicted location higher-order selective neurons encoded objects. However region IPS activated consisted patches disparity-selective neurons, one located more posteriorly, surrounded lacking such selectivity. Thus curved surfaces consists at least which may reconcile previous humans.