Neuroinformatics Glossary
100 terms total — 24 showing — Last updated 15 Sep 2026
event-related potential
Time-locked EEG responses to specific stimuli or events, averaged across multiple trials to enhance signal-to-noise ratio.
radiomics
High-throughput extraction and analysis of quantitative features from medical images.
repetition time
The time interval between successive radiofrequency pulses in an MRI sequence, critically affecting image contrast and t...
resting-state fMRI
Functional magnetic resonance imaging acquired while the subject is not performing any explicit task.
retinotopy
The ordered spatial mapping of visual field locations onto neural tissue, particularly in visual cortex.
reverse inference
Inferring cognitive processes from observed brain activation patterns.
seed region
A starting point region of interest used to initiate connectivity analysis or tractography reconstruction.
source localization
Computational process to determine the brain regions generating observed electrical or magnetic signals recorded from sc...
spatial normalization
Process of transforming individual brain images to a common coordinate space.
spike sorting
Computational process of identifying and classifying action potentials from individual neurons in extracellular recordin...
spike train
A temporal sequence of action potentials recorded from a single neuron or electrode. The pattern and timing of spikes en...
SPM
Statistical Parametric Mapping, a software package for analyzing functional neuroimaging data.
statistical parametric mapping
Voxel-wise statistical analysis framework for neuroimaging data that creates maps showing regions of significant activat...
stereotaxic coordinates
Three-dimensional coordinate system used to precisely locate anatomical structures within the brain for research and cli...
streamline
A reconstructed pathway in tractography representing the probable course of white matter fiber bundles.
sulcal depth map
Three-dimensional representation showing the depth of brain sulci measured from the cortical surface to the deepest poin...
SUMA
Surface mapping and visualization software for cortical surface analysis and display of neuroimaging data.
surface-based morphometry
Analytical approach that measures cortical properties like thickness, area, and curvature on reconstructed brain surface...
susceptibility artifact
Signal distortion in MRI images caused by magnetic field inhomogeneities near air-tissue boundaries, particularly proble...
SWI
MRI sequence that uses phase information to enhance contrast and detect blood products, calcifications, and iron deposit...
T1-weighted
An MRI acquisition sequence that provides high contrast for anatomical structures and gray-white matter differentiation.
T2*
T2-star, an MRI relaxation parameter that includes effects of magnetic field inhomogeneities and susceptibility.
temporal signal-to-noise ratio
A quality metric measuring the ratio of mean signal intensity to temporal variability in fMRI time series.
tensor
A mathematical object describing the three-dimensional characteristics of water diffusion in brain tissue.
time-frequency analysis
Signal processing technique that examines how spectral content of neural signals changes over time, revealing dynamic fr...