Dynamic Brain Network Laboratory
Cognitive brain science, Spatial cognition, Perception of time, Social cognition, Motor learning
Understanding brain functions as those of dynamic networks
Functions of the human brain ranges from perception, motor control, and cognition, to communication. Since the discovery of Broca’s area in 1861, brain researches has been developed by localizing each individual function to a specific region in the brain. However, any function cannot be achieved in one localized area, each individual column, or single neuron. Functions can only be achieved through dynamic collaboration across multiple “localized” areas of the brain. Our Dynamic Brain Network Laboratory aims at finding the principle of such collaboration across multiple regions. Functions being studied are 1) the perception of time, 2) motor learning, 3) visual stability, and 4) social communication.
Left: Blink-related momentary activation of the default mode network (top) and deactivation of the dorsal attention network (bottom). Right: The precuneus, which occupies the center of the brain network, is likely to be representing the origin of our space and time perception (the here and now).
Please visit Lab home page for more details.
|Shigeru Kitazawa Professor||kitazawa[at]fbs.osaka-u.ac.jp|
|Tamami Nakano Associate Professor||tamami_nakano[at]fbs.osaka-u.ac.jp|
|Masato Inoue Specially Appointed Associate Professor||m-inoue[at]fbs.osaka-u.ac.jp|
|Kei Watanabe Assistant Professor||kei_watanabe[at]fbs.osaka-u.ac.jp|
|Masanori Saruwatari Assistant Professor||ms[at]fbs.osaka-u.ac.jp|
|Yuki Murai Research Fellow|
|Ali Moharramipor D５|
|Nao Hanyu D４|
|Mohammand Amin Abdollahi D3|
|Reiji Tanaka D２|
|Yuki Matsuda D1|
|Marina Fukui D1|
|Hiroi Akahoshi D1|
|Shoko Asakage D1|
|Gentaro Takahashi D1|
|Takuto Yamamoto Medical student|
|Yoshiaki Yamazaki Medical student|
|Chinatsu Marumo Medical student|
|Karen Suzu Technician|
|Yoshika kaneda Secretary|
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- What is your hot research topic?
- We are now interested in elucidating the functions of the precuneus. The precuneus, the core region of the default mode network, is likely to represent the origin of our space and time perception (the here and now). The default mode network, which was found to be activated after each eyeblink, occupies the center of the brain network.
- What is your breakthrough or research progress in the last 5 years?
- 1. We found that “the now” is represented in the precuneus (Tang et al., 2021).
2. We found that the dopamine reward sys
3. We found that neurons in the motor and parietal association cortices detect errors in reaching, and provide instructions on how to improve the movement (Inoue et al., 2016, 2018).
- What kind of background do your lab members have？
- Members in our lab have a variety of backgrounds that range from neurophysiology to cognitive neuroscience and engineering.
- Do you collaborate with other institutions and universities?
- We are collaborating with researchers at Johns Hopkins University, Lyon University, and others.
- What kind of careers do your Lab's alumni go on to?
- Some assume positions in universities, research institutes, hospitals, and others in companies.
- How do you develop your research?
- It is generally accepted that amyloid beta deposits begin to accumulate in the precuneus and the default mode network before the onset of Alzheimer's dementia. Our research on cognitive functions and the brain network will provide significant clues to understand pathophysiology of dementia.
Publications (Research Articles, Reviews, Books)
Self-Face Activates the Dopamine Reward Pathway without Awareness
Cerebral Cortex 31(10):4420-4426 2021
Neural correlates of temporal presentness in the precuneus: a cross-linguistic fMRI study based on speech stimuli.
Cerebral Cortex 31(3):1538-1552 2021
Adapting terminology: clarifying prism adaptation vocabulary, concepts, and methods.
Neurosci. Res. 153:8-21 2020
Risk Factors Leading to Preference for Extreme Facial Retouching.
Cyberpsychology Behav. Soc. Netw. 23(1):52-59 2020
Statistical Significance Assessment of Phase Synchrony in the Presence of Background Couplings: An ECoG Study
Brain Topogr. 32(5):882-896 2019
Focused Representation of Successive Task Episodes in Frontal and Parietal Cortex
Cereb. Cortex 30(3):1779-1796 2019
Automatic encoding of a target position relative to a natural scene
J. Neurophysiol. 122(5):1849-1860 2019
Prism adaptation: From rehabilitation to neural bases
Cortex 111:A1-A6 2019
Blink synchronization is an indicator of interest while viewing videos
Int. J. Psychophysiol. 135:1-11 2018
Motor error in parietal area 5 and target error in area 7 drive distinctive adaptation in reaching
Curr. Biol. 28:2250-2262 2018
Causal explanation of individual differences in human sensorimotor memory formation
Dual use of rectangular and triangular waveforms in voltammetry using a carbon fiber microelectrode to differentiate norepinephrine from dopamine
J. Electroanal. Chem. 802:1-7 2017
Transient heart rate acceleration in association with spontaneous eyeblinks
Int. J. Psychophysiol. 121:56-62 2017
Modulation of illusory reversal in tactile temporal order by the phase of posterior alpha rhythm
J. Neurosci. 37(21):5298-5308 2017
Restricted transfer of learning between unimanual and bimanual finger sequences
J. Neurophysiol. 117(3):1043-1051 2017
A group of very preterm children characterized by atypical gaze patterns
Brain Dev. 39(3):187-195 2017
Development of long-term event memory in preverbal infants: an eye-tracking study
Sci Rep 7:187-276 2017
The Right Angular Gyrus Controls Spontaneous Eyeblink Rate: A Combined Structural MRI and TMS Study
Cortex 88:186-191 2017
Short-latency allocentric control of saccadic eye movements.
J. Neurophysiol. 117(1):376-387 2017
A group of very preterm children characterized by atypical gaze patterns.
Brain Dev. 39(3):218-224 2017
Error signals in motor cortices drive adaptation in reaching.
Neuron 90:1-13 2016
Similar impressions of humanness for human and artificial singing voices in autism spectrum disorders
Cognition 153:1-5 2016
Blink and you'll miss it: the role of blinking in the perception of magic tricks
PeerJ 4:e1873 2016
Differences in the Pulsatile Component of the Skin Hemodynamic Response to Verbal Fluency Tasks in the Forehead and the Fingertip
Sci Rep 6:20978 2016
Our ideal candidate (as a graduate student)
We are looking for a highly motivated person to work on our research topics as our lab member.
Dynamic Brain Network Laboratory, Graduate School of Frontier Biosciences, Osaka University,
1-3 Yamadaoka, Suita, Osaka 565-0871 Japan.
E-mail: kitazawa[at]fbs.osaka-u.ac.jp (Prof. Shigeru Kitazawa)
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