Limits...
"Stay tuned": inter-individual neural synchronization during mutual gaze and joint attention.

Saito DN, Tanabe HC, Izuma K, Hayashi MJ, Morito Y, Komeda H, Uchiyama H, Kosaka H, Okazawa H, Fujibayashi Y, Sadato N - Front Integr Neurosci (2010)

Bottom Line: Averted gaze activated the bilateral occipital pole extending to the right posterior superior temporal sulcus, the dorso-medial prefrontal cortex, and the bilateral inferior frontal gyrus.After all the task-related effects were modeled out, inter-individual correlation analysis of residual time-courses was performed.Paired subjects showed more prominent correlations than non-paired subjects in the right inferior frontal gyrus, suggesting that this region is involved in sharing intention during eye contact that provides the context for joint attention.

View Article: PubMed Central - PubMed

Affiliation: Division of Cerebral Integration, Department of Cerebral Research, National Institute for Physiological Sciences Okazaki, Aichi, Japan.

ABSTRACT
Eye contact provides a communicative link between humans, prompting joint attention. As spontaneous brain activity might have an important role in the coordination of neuronal processing within the brain, their inter-subject synchronization might occur during eye contact. To test this, we conducted simultaneous functional MRI in pairs of adults. Eye contact was maintained at baseline while the subjects engaged in real-time gaze exchange in a joint attention task. Averted gaze activated the bilateral occipital pole extending to the right posterior superior temporal sulcus, the dorso-medial prefrontal cortex, and the bilateral inferior frontal gyrus. Following a partner's gaze toward an object activated the left intraparietal sulcus. After all the task-related effects were modeled out, inter-individual correlation analysis of residual time-courses was performed. Paired subjects showed more prominent correlations than non-paired subjects in the right inferior frontal gyrus, suggesting that this region is involved in sharing intention during eye contact that provides the context for joint attention.

No MeSH data available.


Significant positive correlations of the innovation between the paired subjects who had been “face-to-face” during fMRI compared with the non-paired subjects. Images are superimposed on the parasagittal (A), axial (B), and coronal (C) sections of T1-weighted high-resolution MR images. The blue lines in each section cross in the right IFG (44, 26, −6). The color scale indicates the t-values.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC2990457&req=5

Figure 6: Significant positive correlations of the innovation between the paired subjects who had been “face-to-face” during fMRI compared with the non-paired subjects. Images are superimposed on the parasagittal (A), axial (B), and coronal (C) sections of T1-weighted high-resolution MR images. The blue lines in each section cross in the right IFG (44, 26, −6). The color scale indicates the t-values.

Mentions: A comparison of “pair” and “non-pair” correlations showed that the correlation of the right IFG between the two brains was more prominent in the “paired” group than that in the “non-paired” group (Figure 6; Table 3).


"Stay tuned": inter-individual neural synchronization during mutual gaze and joint attention.

Saito DN, Tanabe HC, Izuma K, Hayashi MJ, Morito Y, Komeda H, Uchiyama H, Kosaka H, Okazawa H, Fujibayashi Y, Sadato N - Front Integr Neurosci (2010)

Significant positive correlations of the innovation between the paired subjects who had been “face-to-face” during fMRI compared with the non-paired subjects. Images are superimposed on the parasagittal (A), axial (B), and coronal (C) sections of T1-weighted high-resolution MR images. The blue lines in each section cross in the right IFG (44, 26, −6). The color scale indicates the t-values.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2990457&req=5

Figure 6: Significant positive correlations of the innovation between the paired subjects who had been “face-to-face” during fMRI compared with the non-paired subjects. Images are superimposed on the parasagittal (A), axial (B), and coronal (C) sections of T1-weighted high-resolution MR images. The blue lines in each section cross in the right IFG (44, 26, −6). The color scale indicates the t-values.
Mentions: A comparison of “pair” and “non-pair” correlations showed that the correlation of the right IFG between the two brains was more prominent in the “paired” group than that in the “non-paired” group (Figure 6; Table 3).

Bottom Line: Averted gaze activated the bilateral occipital pole extending to the right posterior superior temporal sulcus, the dorso-medial prefrontal cortex, and the bilateral inferior frontal gyrus.After all the task-related effects were modeled out, inter-individual correlation analysis of residual time-courses was performed.Paired subjects showed more prominent correlations than non-paired subjects in the right inferior frontal gyrus, suggesting that this region is involved in sharing intention during eye contact that provides the context for joint attention.

View Article: PubMed Central - PubMed

Affiliation: Division of Cerebral Integration, Department of Cerebral Research, National Institute for Physiological Sciences Okazaki, Aichi, Japan.

ABSTRACT
Eye contact provides a communicative link between humans, prompting joint attention. As spontaneous brain activity might have an important role in the coordination of neuronal processing within the brain, their inter-subject synchronization might occur during eye contact. To test this, we conducted simultaneous functional MRI in pairs of adults. Eye contact was maintained at baseline while the subjects engaged in real-time gaze exchange in a joint attention task. Averted gaze activated the bilateral occipital pole extending to the right posterior superior temporal sulcus, the dorso-medial prefrontal cortex, and the bilateral inferior frontal gyrus. Following a partner's gaze toward an object activated the left intraparietal sulcus. After all the task-related effects were modeled out, inter-individual correlation analysis of residual time-courses was performed. Paired subjects showed more prominent correlations than non-paired subjects in the right inferior frontal gyrus, suggesting that this region is involved in sharing intention during eye contact that provides the context for joint attention.

No MeSH data available.