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Histology and Cell Biology Lab
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A lab that explores how we are able to move as intended, through the neural circuits of the basal ganglia.
AboutAbout the lab
Function is reflected in structure
Based on the idea that "function is reflected in structure," the lab studies the morphology and function of neural circuits in the brain.
Its main focus is the circuits linking the cerebral cortex, basal ganglia, and thalamus, which connect learning and movement and support selecting actions suited to the situation.
Combining morphological methods with electrophysiology and optogenetics, the lab aims to draw precise maps of brain circuits.
Key terms
- Basal ganglia
- A cluster of neurons deep in the cerebrum. It is involved in motor control, learning, and the selection of actions.
- Optogenetics
- A method of manipulating neural activity by introducing light-responsive proteins into neurons and shining light on them
- External globus pallidus
- A part of the basal ganglia. It acts as a relay point in the circuit, exchanging signals with many regions.
ResearchResearch themes
The lab aims to clarify the brain circuits that connect learning and movement and make it possible to select actions suited to the situation. Based on the circuit maps obtained, it also aims to contribute to understanding and treating diseases in which specific neurons are damaged.
*Illustrative imageBrain loop circuits that select actions
The lab studies how loop circuits connecting the cerebral cortex, basal ganglia, and thalamus achieve "context-dependent action selection." Its methods include neuronal labeling, three-dimensional reconstruction, and patch-clamp recording combined with optogenetics.
*Illustrative imageCircuits surrounding dopamine neurons
Dopamine neurons, whose loss causes Parkinson's disease, are involved not only in motor control but also in processes such as reward-based learning. The lab investigates the neural circuits surrounding these dopamine neurons.
*Illustrative imageCells and circuits of the external globus pallidus
Focusing on the external segment of the globus pallidus, a hub of the basal ganglia, the lab examines its cell types, electrical properties, and where its cells send signals and receive input from, using both morphological and electrophysiological approaches.
MembersFaculty
The lab's members consist of faculty, project researchers, doctoral students, and administrative staff.
- ProfessorFumino Fujiyama
- Assistant ProfessorFuyuki Karube
- Assistant ProfessorChoichi Oshiro
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Z MaxProjection of MediumSpinyNeurons Gpr101Cre dtTomato” Bruttokolliko / CC BY-SA 4.0 (cropped)
- Brain loop circuits that select actions: “Basal Ganglia Anterior Unlabeled” Andrewmeyerson / CC BY-SA 3.0 (cropped)
- Circuits surrounding dopamine neurons: “Neuromelanin in a neuron of the substantia nigra” Tulemo / CC BY-SA 4.0 (cropped)
- Cells and circuits of the external globus pallidus: “Basal Ganglia Posterior Unlabeled” Andrewmeyerson / CC BY-SA 3.0 (cropped)
- Related lab (解剖発生学): “Cerebellum PurkinjeCells” Sbrandner / Public domain (cropped)
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- Related lab (循環器内科学教室): “Dresden, Deutsches Hygiene-Museum, anatomisches Modell, Herz” Dguendel / CC BY 4.0 (cropped)
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