Pink Noise is filtered white noise. This form of stimulation affects the restng membrane potneitl and has the same types of de-coupling properties as white noise. It also creates increased blood perfusion. Pink noise appears to have an effect on microstates, which are associated with the “on-off” switching of a neuon. In using pink noise, you can saturate a neuron with a failtered set of frequencies, that influence the switching of the neurons, effectively changing the ways that they fire. tRNS is one modality that can be used to address stuck patterns, such as thalamo-cortical dysrhythmias (which are found in many hearing disorders, form of mood and affect regulation disorders, some attention deficit disorders, and some movement disorders). Thalamo-cortical dysrhythmias are disorders where there is a persistent gamma waveform attached to&nbsp; a slower carrier wave (typically 8hz or less). Pink noise is typically one step in a multi-step protocol.<br><br><p style="text-align: center;"><img src="@@PLUGINFILE@@/pink-noise.png" alt="" width="343" height="213" role="presentation" class="img-responsive atto_image_button_text-bottom"><br></p><p style="text-align: center;">Figure : The bell curve of pink noise.&nbsp;<br></p>