[1. p.289]
  1. reduced short and long distant connectivity
  2. reduced phase shift durations
  3. lengthened phase locking

  • Deficient GABA can result in reduced phase shift duration and thus reduced neural recruitment.
  • Lengthened phase lock can result from shortened phase shift and can underlay excessive attention to detail and reduced flexibility
  • Repetitive behaviors arise as a consequence of less recruitment of neural resources, thus giving rise to the need to repeat behaviors in order to learn and to store memories

Effects of neurofeedback treatment were investigated in children with autism spectrum disorders (ASD). Sixty percent of the participants in the treatment group successfully reduced excessive theta power during neurofeedback treatment. Reduction of theta power was confirmed by pre- and post-QEEG measures. Parents of participants in the neurofeedback treatment group reported significant improvements in reciprocal social interactions and communication skills, relative to the parents of the control group. Setshifting skills improved following neurofeedback treatment relative to the control group. The reduction of theta power is assumed to reflect modulation of activity in the anterior cingulate cortex (ACC), which is known to be involved in social and executive dysfunctions in autism.