The wandering mind oscillates: EEG alpha power is enhanced during moments of mind-wandering

What is your brain doing while your mind is wandering? This study used a within-subjects experience-sampling design to test whether episodes of mind-wandering during a demanding cognitive task are associated with increases in EEG alpha power. Alpha refers to cyclic oscillations in EEG activity at 8-12 Hz, and has been previously correlated with internally rather than externally directed cognition. Participants completed a speeded performance task with more than 800 trials while EEG was recorded. Intermittent experience-sampling probes asked participants to indicate whether their mind was wandering or on-task. Participants reported mind-wandering in response to approximately half of the probes. EEG alpha power was significantly higher preceding probes to which participants reported mind-wandering, compared with probes to which participants reported being on task. These findings imply that dynamic changes in alpha power may prove a valuable tool in studying momentary fluctuations in mind-wandering.

[1]  T. Hendler,et al.  Towards a Neuroscience of Mind-Wandering , 2011, Front. Hum. Neurosci..

[2]  Robert J. Barry,et al.  Frontal EEG theta/beta ratio during mind wandering episodes , 2019, Biological Psychology.

[3]  R. Compton,et al.  Alpha power is influenced by performance errors. , 2009, Psychophysiology.

[4]  N. Unsworth,et al.  Pupillary correlates of lapses of sustained attention , 2016, Cognitive, affective & behavioral neuroscience.

[5]  Claire Braboszcz,et al.  Lost in thoughts: Neural markers of low alertness during mind wandering , 2011, NeuroImage.

[6]  D. Besner,et al.  In pursuit of off-task thought: mind wandering-performance trade-offs while reading aloud and color naming , 2013, Front. Psychol..

[7]  F. Zitman,et al.  Development and validation of a 30-item short adaptation of the Mood and Anxiety Symptoms Questionnaire (MASQ) , 2010, Psychiatry Research.

[8]  Evelyn Barron,et al.  Absorbed in Thought , 2011, Psychological science.

[9]  Á. Pascual-Leone,et al.  α-Band Electroencephalographic Activity over Occipital Cortex Indexes Visuospatial Attention Bias and Predicts Visual Target Detection , 2006, The Journal of Neuroscience.

[10]  Daniel Smilek,et al.  Wandering minds and wavering rhythms: linking mind wandering and behavioral variability. , 2013, Journal of experimental psychology. Human perception and performance.

[11]  Brandon M. Turner,et al.  When the Brain Takes a Break: A Model-Based Analysis of Mind Wandering , 2014, The Journal of Neuroscience.

[12]  Jonathan W. Schooler,et al.  Young and restless: validation of the Mind-Wandering Questionnaire (MWQ) reveals disruptive impact of mind-wandering for youth , 2013, Front. Psychol..

[13]  N. Unsworth,et al.  The Importance of Arousal for Variation in Working Memory Capacity and Attention Control: A Latent Variable Pupillometry Study , 2017, Journal of experimental psychology. Learning, memory, and cognition.

[14]  Zachary C. Irving,et al.  The Neuroscience of Spontaneous Thought , 2018 .

[15]  James S. P. Macdonald,et al.  Trial-by-Trial Variations in Subjective Attentional State are Reflected in Ongoing Prestimulus EEG Alpha Oscillations , 2011, Front. Psychology.

[16]  D. Watson,et al.  Development and validation of brief measures of positive and negative affect: the PANAS scales. , 1988, Journal of personality and social psychology.

[17]  Jelmer P. Borst,et al.  Predicting task-general mind-wandering with EEG , 2019, Cognitive, Affective, & Behavioral Neuroscience.

[18]  Gili Freedman,et al.  Cognitive control in the intertrial interval: evidence from EEG alpha power. , 2011, Psychophysiology.

[19]  A. Burgess,et al.  Paradox lost? Exploring the role of alpha oscillations during externally vs. internally directed attention and the implications for idling and inhibition hypotheses. , 2003, International journal of psychophysiology : official journal of the International Organization of Psychophysiology.

[20]  J. Smallwood,et al.  The science of mind wandering: empirically navigating the stream of consciousness. , 2015, Annual review of psychology.

[21]  Daniel L. Schacter,et al.  Mind-Wandering With and Without Intention , 2016, Trends in Cognitive Sciences.

[22]  Steve Majerus,et al.  Neural Correlates of Ongoing Conscious Experience: Both Task-Unrelatedness and Stimulus-Independence Are Related to Default Network Activity , 2011, PloS one.

[23]  J. Gross,et al.  On the Role of Prestimulus Alpha Rhythms over Occipito-Parietal Areas in Visual Input Regulation: Correlation or Causation? , 2010, The Journal of Neuroscience.

[24]  Zachary C. Irving,et al.  The Neuroscience of Spontaneous Thought: An Evolving, Interdisciplinary Field , 2017, 1704.02533.

[25]  G. Knyazev,et al.  The default mode network and EEG alpha oscillations: An independent component analysis , 2011, Brain Research.

[26]  P. Schyns,et al.  Entrainment of Perceptually Relevant Brain Oscillations by Non-Invasive Rhythmic Stimulation of the Human Brain , 2011, Front. Psychology.

[27]  Jonathan W. Schooler,et al.  Early event-related brain potentials and hemispheric asymmetries reveal mind-wandering while reading and predict comprehension , 2015, Biological Psychology.

[28]  Birte U. Forstmann,et al.  A Neural Model of Mind Wandering , 2016, Trends in Cognitive Sciences.

[29]  Gregory T. Smith,et al.  Construct Validity of the Five Facet Mindfulness Questionnaire in Meditating and Nonmeditating Samples , 2008, Assessment.

[30]  R. Cohen Kadosh,et al.  Electrical Stimulation of Alpha Oscillations Stabilizes Performance on Visual Attention Tasks , 2019, Journal of experimental psychology. General.

[31]  T. Handy,et al.  Mind wandering and selective attention to the external world. , 2015, Canadian journal of experimental psychology = Revue canadienne de psychologie experimentale.

[32]  Mingzhou Ding,et al.  Coupling between visual alpha oscillations and default mode activity , 2013, NeuroImage.

[33]  J. Schoffelen,et al.  Prestimulus Oscillatory Activity in the Alpha Band Predicts Visual Discrimination Ability , 2008, The Journal of Neuroscience.

[34]  E. Adrian,et al.  THE BERGER RHYTHM: POTENTIAL CHANGES FROM THE OCCIPITAL LOBES IN MAN , 1934 .

[35]  Jonathan Smallwood,et al.  Going AWOL in the Brain: Mind Wandering Reduces Cortical Analysis of External Events , 2008, Journal of Cognitive Neuroscience.

[36]  D. Smilek,et al.  On the Necessity of Distinguishing Between Unintentional and Intentional Mind Wandering , 2016, Psychological science.

[37]  Carryl L. Baldwin,et al.  Detecting and Quantifying Mind Wandering during Simulated Driving , 2017, Front. Hum. Neurosci..