How Two Brains Make One Synchronized Mind in the Inferior Frontal Cortex: fNIRS-Based Hyperscanning During Cooperative Singing
Year: 2015
Type: article
Abstract: One form of communication that is common in all cultures is people singing together. Singing together reflects an index of cognitive synchronization and cooperation of human brains. Little is known about the neural synchronization mechanism, however. Here, we examined how two brains make one synchronized behavior using cooperated singing/humming between two people and hyperscanning, a new brain scanning technique. Hyperscanning allowed us to observe dynamic cooperation between interacting participants. We used functional near-infrared spectroscopy (fNIRS) to simultaneously record the brain activity of two people while they cooperatively sang or hummed a song in face-to-face (FtF) or face-to-wall (FtW) conditions. By calculating the inter-brain wavelet transform coherence between two interacting brains, we found a significant increase in the neural synchronization of the left inferior frontal cortex (IFC) for cooperative singing or humming regardless of FtF or FtW compared with singing or humming alone. On the other hand, the right IFC showed an increase in neural synchronization for humming only, possibly due to more dependence on musical processing.
Source: Frontiers in Psychology
Authors: Naoyuki Osaka, Takehiro Minamoto, Ken Yaoi, Miyuki Azuma, Yohko Minamoto Shimada, Mariko Osaka
Language: English
Subfield: Social Psychology
Field: Psychology
Domain: Social Sciences
Open Access status: gold
Estimated APC paid: $3,801
Awards: Neural Mechanisms of Anger Regulation: Studies with Neural Network and Decoding Analysis, Social Interaction to Emerge the Social Brain: Toward the Fusion of Two BrainsStudy of social brain using hyperscanning, Cultural and ecological foundations of education and learning: An anthropological study on rhythm, imitation, and exchange, Exploration of Attentional Resource for Emotional Information: A Cognitive Neuroscience Study, The brain mechanisms of working memory under the unconscious processes: comparison between conscious and anesthetized conscious condition, The cognitive and neural basis of human self recognition: From the aspect of the self reference effect, Unveiling social brain by analyzing prefrontal brain network: applying methodology from microelectrode to fMRI
OpenAlex ID: W2192098495