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Neuroimaging of the joint Simon effect with believed biological and non-biological co-actors.

Wen T, Hsieh S - Front Hum Neurosci (2015)

Bottom Line: Performing a task alone or together with another agent can produce different outcomes.The medial prefrontal cortex, involved thinking about the beliefs and intentions of other people, possibly reflects a social-cognitive aspect or self-other discrimination during the joint task when believing a biological co-actor is present.Our results suggest that action co-representation can occur even offline with any agent type given a priori information that they are co-acting; however, additional regions are recruited when participants believe they are task-sharing with another human.

View Article: PubMed Central - PubMed

Affiliation: Cognitive Electrophysiology Lab: Control, Aging, Sleep, and Emotion, Department of Psychology, National Cheng Kung University Tainan, Taiwan ; Department of Life Sciences, National Cheng Kung University Tainan, Taiwan.

ABSTRACT
Performing a task alone or together with another agent can produce different outcomes. The current study used event-related functional magnetic resonance imaging (fMRI) to investigate the neural underpinnings when participants performed a Go/Nogo task alone or complementarily with another co-actor (unseen), whom was believed to be another human or a computer. During both complementary tasks, reaction time data suggested that participants integrated the potential action of their co-actor in their own action planning. Compared to the single-actor task, increased parietal and precentral activity during complementary tasks as shown in the fMRI data further suggested representation of the co-actor's response. The superior frontal gyrus of the medial prefrontal cortex was differentially activated in the human co-actor condition compared to the computer co-actor condition. The medial prefrontal cortex, involved thinking about the beliefs and intentions of other people, possibly reflects a social-cognitive aspect or self-other discrimination during the joint task when believing a biological co-actor is present. Our results suggest that action co-representation can occur even offline with any agent type given a priori information that they are co-acting; however, additional regions are recruited when participants believe they are task-sharing with another human.

No MeSH data available.


Related in: MedlinePlus

Montage of transversal slicing (the numbers indicate the z coordinates) of using Nogo trials as a baseline and comparing the activity of Go trials in (A) biological co-actor condition versus the single-actor No/Nogo condition; (B) computer co-actor condition versus the single-actor No/Nogo condition; and (C) biological co-actor condition versus the computer co-actor condition.
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Figure 3: Montage of transversal slicing (the numbers indicate the z coordinates) of using Nogo trials as a baseline and comparing the activity of Go trials in (A) biological co-actor condition versus the single-actor No/Nogo condition; (B) computer co-actor condition versus the single-actor No/Nogo condition; and (C) biological co-actor condition versus the computer co-actor condition.

Mentions: Using Nogo trials as a baseline, we respectively compared activity on Go trials among the two co-actor conditions (believed biological agent co-actor and computer co-actor) and the single Go/Nogo tasks (i.e., Go-congruent + Go-incongruent > Nogo-congruent + Nogo-incongruent). The contrasts are depicted in Figure 3. Peak coordinates of the ROIs are listed in Table 2. These contrasts indicated that the biological co-actor condition compared to the single Go/Nogo condition showed higher activation in the cingulate gyrus, posterior cingulate, cuneus, precuneus, inferior parietal lobule, lingual gyrus, middle occipital gyrus, superior occipital lobule, middle temporal gyrus, supramarginal gyrus, fusiform gyrus, declive, middle frontal gyrus, and superior frontal gyrus, and less activation in the insula. The computer co-actor condition compared to the single Go/Nogo condition showed higher activation in the same regions, with additional regions including the anterior cingulate, superior parietal lobule, occipital lobe Brodmann area 19, superior occipital gyrus, inferior occipital gyrus, superior temporal gyrus, inferior temporal gyrus, parahippocampal gyrus, angular gyrus, precentral gyrus, post-central gryus, paracentral lobule, medial frontal gyrus, inferior frontal gyrus, thalamus, culmen, culmen of vermis, pyramis, lentiform nucleus, claustrum, but no differences in the superior occipital lobule and insula. Significant differences between the biological and computer co-actor conditions occurred in the anterior cingulate, posterior cingulate, cingulate gyrus, precuneus, superior parietal lobule, middle occipital gyrus, middle temporal gyrus, middle frontal gyrus, medial frontal gyrus, inferior frontal gyrus, lentiform nucleus, sub-gyral, extra-nuclear, and culmen, declive.


Neuroimaging of the joint Simon effect with believed biological and non-biological co-actors.

Wen T, Hsieh S - Front Hum Neurosci (2015)

Montage of transversal slicing (the numbers indicate the z coordinates) of using Nogo trials as a baseline and comparing the activity of Go trials in (A) biological co-actor condition versus the single-actor No/Nogo condition; (B) computer co-actor condition versus the single-actor No/Nogo condition; and (C) biological co-actor condition versus the computer co-actor condition.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4555067&req=5

Figure 3: Montage of transversal slicing (the numbers indicate the z coordinates) of using Nogo trials as a baseline and comparing the activity of Go trials in (A) biological co-actor condition versus the single-actor No/Nogo condition; (B) computer co-actor condition versus the single-actor No/Nogo condition; and (C) biological co-actor condition versus the computer co-actor condition.
Mentions: Using Nogo trials as a baseline, we respectively compared activity on Go trials among the two co-actor conditions (believed biological agent co-actor and computer co-actor) and the single Go/Nogo tasks (i.e., Go-congruent + Go-incongruent > Nogo-congruent + Nogo-incongruent). The contrasts are depicted in Figure 3. Peak coordinates of the ROIs are listed in Table 2. These contrasts indicated that the biological co-actor condition compared to the single Go/Nogo condition showed higher activation in the cingulate gyrus, posterior cingulate, cuneus, precuneus, inferior parietal lobule, lingual gyrus, middle occipital gyrus, superior occipital lobule, middle temporal gyrus, supramarginal gyrus, fusiform gyrus, declive, middle frontal gyrus, and superior frontal gyrus, and less activation in the insula. The computer co-actor condition compared to the single Go/Nogo condition showed higher activation in the same regions, with additional regions including the anterior cingulate, superior parietal lobule, occipital lobe Brodmann area 19, superior occipital gyrus, inferior occipital gyrus, superior temporal gyrus, inferior temporal gyrus, parahippocampal gyrus, angular gyrus, precentral gyrus, post-central gryus, paracentral lobule, medial frontal gyrus, inferior frontal gyrus, thalamus, culmen, culmen of vermis, pyramis, lentiform nucleus, claustrum, but no differences in the superior occipital lobule and insula. Significant differences between the biological and computer co-actor conditions occurred in the anterior cingulate, posterior cingulate, cingulate gyrus, precuneus, superior parietal lobule, middle occipital gyrus, middle temporal gyrus, middle frontal gyrus, medial frontal gyrus, inferior frontal gyrus, lentiform nucleus, sub-gyral, extra-nuclear, and culmen, declive.

Bottom Line: Performing a task alone or together with another agent can produce different outcomes.The medial prefrontal cortex, involved thinking about the beliefs and intentions of other people, possibly reflects a social-cognitive aspect or self-other discrimination during the joint task when believing a biological co-actor is present.Our results suggest that action co-representation can occur even offline with any agent type given a priori information that they are co-acting; however, additional regions are recruited when participants believe they are task-sharing with another human.

View Article: PubMed Central - PubMed

Affiliation: Cognitive Electrophysiology Lab: Control, Aging, Sleep, and Emotion, Department of Psychology, National Cheng Kung University Tainan, Taiwan ; Department of Life Sciences, National Cheng Kung University Tainan, Taiwan.

ABSTRACT
Performing a task alone or together with another agent can produce different outcomes. The current study used event-related functional magnetic resonance imaging (fMRI) to investigate the neural underpinnings when participants performed a Go/Nogo task alone or complementarily with another co-actor (unseen), whom was believed to be another human or a computer. During both complementary tasks, reaction time data suggested that participants integrated the potential action of their co-actor in their own action planning. Compared to the single-actor task, increased parietal and precentral activity during complementary tasks as shown in the fMRI data further suggested representation of the co-actor's response. The superior frontal gyrus of the medial prefrontal cortex was differentially activated in the human co-actor condition compared to the computer co-actor condition. The medial prefrontal cortex, involved thinking about the beliefs and intentions of other people, possibly reflects a social-cognitive aspect or self-other discrimination during the joint task when believing a biological co-actor is present. Our results suggest that action co-representation can occur even offline with any agent type given a priori information that they are co-acting; however, additional regions are recruited when participants believe they are task-sharing with another human.

No MeSH data available.


Related in: MedlinePlus