Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The basic unit of a three-dimensional digital representation of an image or object.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun computer graphics the three-dimensional analogue of a pixel; a volume element representing some numerical quantity, such as the colour, of a point in three-dimensional space, used in the visualisation and analysis of three-dimensional (especially scientific and medical) data

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[vo(lumetric) + (pi)xel.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

Blend of volumetric and pixel

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Examples

  • The smallest brain area called a voxel that fMRI can measure is usually a 3mm to 5mm three-dimensional volume.

    Choke Ph.D. Sian Beilock 2010

  • The smallest brain area called a voxel that fMRI can measure is usually a 3mm to 5mm three-dimensional volume.

    Choke Ph.D. Sian Beilock 2010

  • The smallest brain area called a voxel that fMRI can measure is usually a 3mm to 5mm three-dimensional volume.

    Choke Ph.D. Sian Beilock 2010

  • Using a specialized technique called voxel-based morphometry, Ellemarije Altena and Ysbrand van der Werf from the research group of Eus van Someren evaluated the brain volumes of persons with chronic insomnia who were otherwise psychiatrically healthy, and compared them to healthy persons without sleep problems.

    PhysOrg.com - latest science and technology news stories 2010

  • The researchers used a technique called voxel-based morphometry (VBM) to classify areas of brain tissue in their MRI images as grey matter, white matter, or cerebro-spinal fluid, and to compare the volume of each tissue at different stages of learning.

    R&D Mag - News 2010

  • The researchers used a technique called voxel-based morphometry (VBM) to classify areas of brain tissue in their MRI images as grey matter, white matter, or cerebro-spinal fluid, and to compare the volume of each tissue at different stages of learning.

    innovations-report 2010

  • The researchers used a technique called voxel-based morphometry (VBM) to classify areas of brain tissue in their MRI images as grey matter, white matter, or cerebro-spinal fluid, and to compare the volume of each tissue at different stages of learning.

    innovations-report 2010

  • Using a specialized technique called voxel-based morphometry, Ellemarije Altena and Ysbrand van der Werf from the research group of Eus van Someren evaluated the brain volumes of persons with chronic insomnia who were otherwise psychiatrically healthy, and compared them to healthy persons without sleep problems.

    PhysOrg.com - latest science and technology news stories 2010

  • The researchers used a technique called voxel-based morphometry (VBM) to classify areas of brain tissue in their MRI images as grey matter, white matter, or cerebro-spinal fluid, and to compare the volume of each tissue at different stages of learning.

    innovations-report 2010

  • The researchers used a technique called voxel-based morphometry (VBM) to classify areas of brain tissue in their MRI images as grey matter, white matter, or cerebro-spinal fluid, and to compare the volume of each tissue at different stages of learning.

    Medgadget 2010

Comments

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  • from Physics of the Impossible by Michio Kaku, 2008, p. 81:

    "The smallest chunk of the brain that can be reliably analyzed by an fMRI machine is called a 'voxel.' But each voxel corresponds to several million neurons, so the sensitivity of an fMRI machine is not good enough to isolate individual thoughts."

    February 7, 2010

  • Also, a 3-dimensional pixel "volumetric pixel"

    February 7, 2010

  • One of |Jack| Gallant’s graduate students at the time, Alex Huth, used the Gallant lab’s cutting-edge techniques to analyze where the brain might encode different kinds of visual information. Huth, Gallant and their colleagues had participants watch hours of silent videos while inside fMRI scanners. Then, segmenting the data into records for roughly pea-size volumes of brain tissue called voxels, they analyzed the scans to determine where hundreds of objects and actions were represented across the cortex.

    -- "New Map of Meaning in the Brain Changes Ideas About Memory" (https://www.quantamagazine.org/new-map-of-meaning-in-the-brain-changes-ideas-about-memory-20220208/)

    February 22, 2022