A small number of scientific studies of BBs have attempted to assess the validity of these claims with mixed results and inconsistent methodologies (Garcia-Argibay et al., 2019).īBs are a psychophysiological effect which arises when tones with differing frequencies are presented independently to each ear. Alternative medicine practitioners have been promoting ‘binaural beat therapy’ with a range of claimed benefits, going beyond cognitive enhancement to include reduction in stress and anxiety, enhanced meditative states, and even analgesia (Smith, 2019). The phenomenon of “binaural beats” (BBs) has gained interest in popular culture recently as a potential method of non-invasive brain stimulation. Our findings do not provide evidence for improvement in attention with gamma BB. We found no effect of BB on self-rated measures of anxiety. We found no significant differences in Reaction Time (RT), Error Rate (ER), or the efficacy of the Attention Networks (AN) between the experimental and control conditions (p > 0.05). Performance on the ANT task (reaction time and error rates) between BB and control groups was evaluated using Wilcoxon signed-rank tests. All completed a rating scale for levels of anxiety before and after each exposure.
Here, we investigated the effect of gamma (40-Hz) BBs on attention using the attention network test (ANT), a previously unused task that assesses three subtypes of attention: Alerting, Orienting, and Executive Control.įifty-eight healthy adults performed the ANT remotely under the exposure of 340-Hz BBs and a 380-Hz control tone. Previous research has implicated the role of BBs through brainwave entrainment in potentially giving rise to benefits ranging from enhanced memory and attention to reduced anxiety and stress. Binaural beats (BB) are an auditory phenomenon produced from a combination of two sine waves with slightly different frequencies presented to each ear.
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