3d Digitizer Brain Mapping
3d Digitizer Brain Mapping - Related Videos
01:09
Quantitative Susceptibility Mapping of a Human Brain Using Ex-Vivo Magnetic Resonance Imaging
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2025
Quantitative susceptibility mapping, or QSM, quantifies the magnetic susceptibility of brain tissue, which reflects its cellular composition, like myelin content.Begin by acquiring ex-vivo magnetic resonance imaging or MRI data of a fixed human brain hemisphere.Use 3D gradient magnetic fields to magnetize the tissue and collect signals at multiple time points or echoes to reduce background noise and artifacts and enhance the signals.Generate phase maps for all echoes, ensuring the removal of...
10:36
Ultrasound Localization Microscopy for Super-Resolution Mapping of the Rodent Brain Microvasculature
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2025
Ultrasound Localization Microscopy (ULM) is a recently developed technique that allows for an unprecedented level of resolution in imaging the microvasculature in vivo. In this work, we describe in detail how to obtain super-resolved images of the brain microvasculature in rodents using a standardized functional ultrasound imaging platform designed for preclinical research.
11:03
Motor Maps
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2023
Source: Laboratories of Jonas T. Kaplan and Sarah I. Gimbel—University of Southern California One principle of brain organization is the topographic mapping of information. Especially in sensory and motor cortices, adjacent regions of the brain tend to represent information from adjacent parts of the body, resulting in maps of the body expressed on the surface of the brain. The primary sensory and motor maps in the brain surround a prominent sulcus known as the central sulcus. The cortex...
11:34
High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques
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Cited by 9 •
2013
This video describes the fundamentals of digital fringe projection techniques, which provide dense 3D measurements of dynamically changing surfaces. It also demonstrates the design and operation of a high-speed binary defocusing system based on these techniques.
09:24
Micro 3D Printing Using a Digital Projector and its Application in the Study of Soft Materials Mechanics
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Cited by 31 •
2012
We demonstrate controlled pattern transformation of swelling gel tubes by elastic instability. A simple projection micro stereo-lithography setup is built using an off-the-shelf digital data projector to fabricate three-dimensional polymeric structures in a layer-by-layer fashion. Swelling hydrogel tubes under mechanical constraint display various circumferential buckling modes depending on dimension.
FAQs
The central mechanism is coordinate-based co-registration. A set of three-dimensional points provides a spatial relationship between measurement locations and the participant’s head anatomy. Software can then align those locations with a structural brain image or a standardized reference space, allowing recorded neurophysiological activity to be interpreted in anatomical context rather than as sensor data alone.
Anatomical landmarks and sensor or electrode locations serve different purposes in the same spatial model. Landmarks anchor the head’s geometry, while sensor or electrode coordinates identify where measurements were acquired. Combining these point types lets the registration step relate recording channels to individual anatomy, which is important when interpreting which brain regions may contribute to observed signals.
Registration to an individual structural image and registration to a standardized reference space answer different analytical needs. The individual image preserves participant-specific anatomy, whereas the reference space supports a common spatial framework for comparing data across participants. Using either target changes how spatial results are interpreted, so the chosen space should match the study’s emphasis on individualization or comparability.
Spatial co-registration matters because neurophysiological recordings do not automatically identify their anatomical source with precision. Linking channel positions to anatomy reduces uncertainty when researchers interpret signal origins and map brain activity. This does not replace the recorded signal; it adds spatial information that helps connect measurements with the brain structures or regions represented in the analysis.
During acquisition, the operator uses a digitizing probe or tracking system to capture coordinate points on the head. The recorded points can include anatomical landmarks and the positions of sensors or electrodes. Software subsequently uses these coordinates for co-registration with a structural brain image or standardized space, producing a spatial basis for interpreting the recording.
When applying 3D digitizer brain mapping to electroencephalography, the key practical outcome is a better anatomical interpretation of channel-level measurements. The spatial data connect electrode locations with the participant’s anatomy, supporting analyses that relate recorded activity to brain location. The same logic can extend to other neurophysiological recordings when their measurement locations need anatomical context.
The method is especially useful when a study needs individualized analysis rather than a purely generic brain representation. Participant-specific coordinates can be registered to that person’s structural anatomy, helping researchers examine neural function in relation to individual spatial organization. This makes the technique relevant to brain activity mapping and clinical assessment, where anatomical interpretation is part of the research question.
In multimodal neuroscience, the coordinate data provide a spatial link between neurophysiological measurements and structural brain information. That link can help organize results across measurement types and support interpretation of neural function within an anatomical framework. Its broader value lies in connecting brain activity mapping, imaging-based context, and subject-specific analysis through a shared spatial reference.