<p>Phase reversals are a focal finding in the EEG where the waveforms go electro-positive and electro-negative, looking as though they are pointing to each other. This is a marker of a physical abnormality and can point to the seizure focus, a lesion, hypoperfusion, localized infarct (a small localized area of dead tissue), or white matter ischemia. This is an “X marks the spot” type of finding. Phase Reversals can be seen using bi-polar montages.</p><p style="text-align: center;"><img src="@@PLUGINFILE@@/multi-focal-spikes-eeg.png" alt="Multi-focal spikes in the EEG" width="672" height="1097" class="img-responsive atto_image_button_middle"><br></p><p style="text-align: center;">Figure : multi-focal spikes in the EEG<br></p><p style="text-align: center;"><br></p><p style="text-align: center;"><img src="@@PLUGINFILE@@/phase-reversals.png" alt="Phase Reversals" width="542" height="775" class="img-responsive atto_image_button_text-bottom"><br></p><p style="text-align: center;">Figure : Phase Reversals<br></p><p style="text-align: center;"><br></p>