The right temporoparietal junction encodes efforts of others during action observation

Nobuaki Mizuguchi, Hiroki Nakata, Kazuyuki Kanosue

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Smooth social interactions require a deep understanding of others' intentions and feelings. In the present study, to investigate brain regions that respond to inference of others' effort level, we recorded brain activity during action observation of different effort levels using functional magnetic resonance imaging (fMRI). We used a dumbbell curl movement to depict a movement requiring effort. To dissociate the factors of effort level of the actor and weight of the dumbbell, we used four combinations of dumbbell weight and actor physique: a thin actor or a built actor lifting a heavy or light dumbbell. During observation of dumbbell curls, the bilateral front-parietal action observation network (AON) was activated. This included the premotor cortices, parietal cortices, visual areas 5/superior temporal cortices (STS), amygdalae, hippocampi, right dorsolateral and ventrolateral frontal cortices. When we evaluated brain regions associated with the actor's effort level, activity in the right temporoparietal junction (TPJ) and STS was observed. However, activity in the front-parietal AON was independent of the actor's effort during action observation. This finding suggests that the right TPJ and STS play an important role in the inference of others' effort levels during the observation of others' movements.

Original languageEnglish
Article number30274
JournalScientific Reports
Volume6
DOIs
Publication statusPublished - 2016 Jul 26

Fingerprint

Observation
Temporal Lobe
Brain
Weights and Measures
Parietal Lobe
Motor Cortex
Frontal Lobe
Interpersonal Relations
Amygdala
Hippocampus
Emotions
Magnetic Resonance Imaging
Light

ASJC Scopus subject areas

  • General

Cite this

The right temporoparietal junction encodes efforts of others during action observation. / Mizuguchi, Nobuaki; Nakata, Hiroki; Kanosue, Kazuyuki.

In: Scientific Reports, Vol. 6, 30274, 26.07.2016.

Research output: Contribution to journalArticle

@article{c2c49f0c88eb451f8ad7e226c39b918c,
title = "The right temporoparietal junction encodes efforts of others during action observation",
abstract = "Smooth social interactions require a deep understanding of others' intentions and feelings. In the present study, to investigate brain regions that respond to inference of others' effort level, we recorded brain activity during action observation of different effort levels using functional magnetic resonance imaging (fMRI). We used a dumbbell curl movement to depict a movement requiring effort. To dissociate the factors of effort level of the actor and weight of the dumbbell, we used four combinations of dumbbell weight and actor physique: a thin actor or a built actor lifting a heavy or light dumbbell. During observation of dumbbell curls, the bilateral front-parietal action observation network (AON) was activated. This included the premotor cortices, parietal cortices, visual areas 5/superior temporal cortices (STS), amygdalae, hippocampi, right dorsolateral and ventrolateral frontal cortices. When we evaluated brain regions associated with the actor's effort level, activity in the right temporoparietal junction (TPJ) and STS was observed. However, activity in the front-parietal AON was independent of the actor's effort during action observation. This finding suggests that the right TPJ and STS play an important role in the inference of others' effort levels during the observation of others' movements.",
author = "Nobuaki Mizuguchi and Hiroki Nakata and Kazuyuki Kanosue",
year = "2016",
month = "7",
day = "26",
doi = "10.1038/srep30274",
language = "English",
volume = "6",
journal = "Scientific Reports",
issn = "2045-2322",
publisher = "Nature Publishing Group",

}

TY - JOUR

T1 - The right temporoparietal junction encodes efforts of others during action observation

AU - Mizuguchi, Nobuaki

AU - Nakata, Hiroki

AU - Kanosue, Kazuyuki

PY - 2016/7/26

Y1 - 2016/7/26

N2 - Smooth social interactions require a deep understanding of others' intentions and feelings. In the present study, to investigate brain regions that respond to inference of others' effort level, we recorded brain activity during action observation of different effort levels using functional magnetic resonance imaging (fMRI). We used a dumbbell curl movement to depict a movement requiring effort. To dissociate the factors of effort level of the actor and weight of the dumbbell, we used four combinations of dumbbell weight and actor physique: a thin actor or a built actor lifting a heavy or light dumbbell. During observation of dumbbell curls, the bilateral front-parietal action observation network (AON) was activated. This included the premotor cortices, parietal cortices, visual areas 5/superior temporal cortices (STS), amygdalae, hippocampi, right dorsolateral and ventrolateral frontal cortices. When we evaluated brain regions associated with the actor's effort level, activity in the right temporoparietal junction (TPJ) and STS was observed. However, activity in the front-parietal AON was independent of the actor's effort during action observation. This finding suggests that the right TPJ and STS play an important role in the inference of others' effort levels during the observation of others' movements.

AB - Smooth social interactions require a deep understanding of others' intentions and feelings. In the present study, to investigate brain regions that respond to inference of others' effort level, we recorded brain activity during action observation of different effort levels using functional magnetic resonance imaging (fMRI). We used a dumbbell curl movement to depict a movement requiring effort. To dissociate the factors of effort level of the actor and weight of the dumbbell, we used four combinations of dumbbell weight and actor physique: a thin actor or a built actor lifting a heavy or light dumbbell. During observation of dumbbell curls, the bilateral front-parietal action observation network (AON) was activated. This included the premotor cortices, parietal cortices, visual areas 5/superior temporal cortices (STS), amygdalae, hippocampi, right dorsolateral and ventrolateral frontal cortices. When we evaluated brain regions associated with the actor's effort level, activity in the right temporoparietal junction (TPJ) and STS was observed. However, activity in the front-parietal AON was independent of the actor's effort during action observation. This finding suggests that the right TPJ and STS play an important role in the inference of others' effort levels during the observation of others' movements.

UR - http://www.scopus.com/inward/record.url?scp=84979588290&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84979588290&partnerID=8YFLogxK

U2 - 10.1038/srep30274

DO - 10.1038/srep30274

M3 - Article

AN - SCOPUS:84979588290

VL - 6

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

M1 - 30274

ER -