Brainstem Response (ABR)
A self-contained guide to the auditory brainstem response — from the wave generators to threshold estimation, neonatal screening, intraoperative monitoring and brain-death determination. Built for students, trainees and clinicians.
Explore the atlas
Introduction
What ABR is, what it is good for, and the language this atlas teaches.
The AtlasAnatomy & Generators
The five waves and the brainstem stations that generate them, base to inferior colliculus.
The AtlasTechnique
Stimulus, electrodes, filters, rate and polarity — the choices behind a clean trace.
The AtlasNormal Waves
The canonical adult ABR: peaks, interpeak intervals, and how they shift with age and intensity.
The AtlasThreshold ABR
Frequency-specific objective hearing assessment when behaviour cannot be trusted.
The AtlasNeonatal Screening
Universal screening, the 1-3-6 rule, and the structural reason OAE programmes miss ANSD.
The AtlasIntraoperative Monitoring
Real-time ABR in cerebellopontine-angle surgery: knowing when to alarm.
The AtlasComa & Brain Death
ABR as a window on brainstem function when examination and imaging are not decisive.
InteractiveABR Simulator
Build a trace from peaks and noise; read latency and interpeak intervals live.
InteractiveComparison Tool
Place two ABR patterns side by side and see how their signatures differ.
InteractivePattern Trainer
An endless stream of traces to classify, with graded feedback on every call.
InteractiveSelf-Assessment
A question bank with browse, spaced-repetition and timed modes.
InteractiveClinical Cases
Worked cases — read the vignette, study the trace, and reason to a diagnosis.
ReferenceGlossary
Concise definitions of the key terms, with aliases and cross-links.
ReferenceReferences
The peer-reviewed and authoritative sources behind every claim in the atlas.
The conditions
Each condition pairs a narrative explanation with the characteristic ABR trace, latency-intensity behaviour and citations.