High levels of athletic performance are frequently attributed to mental states. Evidence for this attribution comes mainly from phenomenological reports of athletes. However, research with elite performers using electrophysiological measures has tracked changes in nervous system activity in real time during performance, which may further understanding of such states. Specific patterns of psychophysiological activity from the cerebral cortex, in the form of event-related slow potentials (SPs), as well as spectral content measured by electroencephalography (EEG), occur in the few seconds of performance (preshot) preparation. We discuss these data. We suggest that the logical structure of research with athletes differs from other psychophysiological research. We emphasize the theoretical mind-body issues and the logical structure of these investigations to suggest directions for future research.
George W. Lawton, Tsung Min Hung, Pekka Saarela, and Bradley D. Hatfield
Stijn Schouppe, Jessica Van Oosterwijck, Jan R. Wiersema, Stefaan Van Damme, Tine Willems, and Lieven Danneels
, such a RAM task will be performed to assess a central indicator of movement preparation (i.e., the contingent negative variation [CNV]). This is a negative-going slow-wave brain potential, which is measured by electroencephalography (EEG; Walter, Cooper, Aldridge, McCallum, & Winter, 1964 ). The CNV
Nicholas D. Gilson, Caitlin Hall, Angela Renton, Norman Ng, and William von Hippel
study sought to investigate the impact of sit-only, sit–stand, and treadmill desk conditions on psychobiological indicators of work productivity. Specifically, we assessed brain activation during an attention task, recorded continuously via electroencephalography (EEG) at the end of workdays spent in an
Kirk F. Grand, Marcos Daou, Keith R. Lohse, and Matthew W. Miller
The present study investigated whether motivation and augmented feedback processing explain the effect of an incidental choice on motor learning, and examined whether motivation and feedback processing generally predict learning. Accordingly, participants were assigned to one of two groups, choice or yoked, then asked to practice a nondominant arm beanbag toss. The choice group was allowed to choose the color of the beanbag with which they made the toss, whereas the yoked group was not. Motor learning was determined by delayed-posttest accuracy and precision. Motivation and augmented feedback processing were indexed via the Intrinsic Motivation Inventory and electroencephalography, respectively. We predicted the choice group would exhibit greater motor learning, motivation, and augmented feedback processing, and that the latter two variables would predict learning. Results showed that an incidental choice failed to enhance motor learning, motivation, or augmented feedback processing. In addition, neither motivation nor augmented feedback processing predicted motor learning. However, motivation and augmented feedback processing were correlated, with both factors predicting changes in practice performance. Thus, results suggest the effect of incidental choices on motor learning may be tenuous, and indicate motivation and augmented feedback processing may be more closely linked to changes in practice performance than motor learning.
Linda Becker, Daniel Büchel, Tim Lehmann, Miriam Kehne, and Jochen Baumeister
participants, 22 ICs), left parieto-occipital (15 participants, 26 ICs), occipital (16 participants, 24 ICs), and right parieto-occipital (13 participants, 20 ICs) areas. Colored spheres indicate single EEG signal sources. EEG indicates electroencephalography; IC, independent component. The statistical
Kishor Lakshminarayanan, Rakshit Shah, Yifei Yao, and Deepa Madathil
achieve this, we examined the cortical activity using electroencephalography (EEG) during kinesthetic MI with and without sensory stimulation. Machine learning techniques were applied to discriminate different MI task-based sensorimotor responses. It was hypothesized that sensory stimulation
Dave Smith and Dave Collins
The aim of these two studies was to examine the application of Lang’s (1979, 1985) bioinformational theory to the mental practice (MP) of a strength task, the maximal voluntary contraction of the abductor digiti minimi, and the MP of a computerized barrier knockdown task. Study 1 divided 18 males into three groups: a physical practice (PP) group; a stimulus and response proposition mental practice (SRP) group; and a stimulus proposition mental practice (SP) group. Each participant either physically or mentally practiced 40 contractions twice a week for 3 weeks, and electroencephalograms (EEGs) were recorded during testing sessions. All three groups significantly increased abduction strength, but there were no significant between-group differences in the magnitude of the improvements. In addition, late contingent negative variation (CNV) waves were apparent prior to both real and imagined movements in all conditions. Study 2 allocated 24 participants to PP, SRP, SP, and control groups. Participants performed 120 imaginary or actual barrier knockdown trials, with EEGs recorded as in Study 1. A Group × Test ANOVA for movement time revealed that the PP and SRP groups improved to a significantly greater degree than the SP and control groups. Also, the late CNV was observed prior to real and imagined movement in the SRP group, but not prior to imagined movement in the SP group. These results support bioinformational theory with respect to cognitively oriented motor tasks, but not strength tasks.
Carlos Amo, Miguel Ortiz del Castillo, Rafael Barea, Luis de Santiago, Alejandro Martínez-Arribas, Pedro Amo-López, and Luciano Boquete
Propose a simplified method applicable in routine clinical practice that uses EEG to assess induced gamma-band activity (GBA) in the 30–90 Hz frequency range in cerebral motor areas.
EEG recordings (25 healthy subjects) of cerebral activity (at rest, motor task). GBA was obtained as power spectral density (PSD). GBA — defined as the gamma index (Iγ) — was calculated using the basal GBA (γB) and motor GBA (γMOV) PSD values.
The mean values of Iγ were (Iγ R (right hand) = 1.30, Iγ L (left hand) = 1.22). Manual laterality showed a correlation with Iγ.
Iγ may provide a useful way of indirectly assessing operation of activated motor neuronal circuits. It could be applied to diagnosis of motor area pathologies and as follow up in rehabilitation processes. Likewise, Iγ could enable the assessment of motor capacity, physical training and manual laterality in sport medicine.
James W.G. Thompson and David Hagedorn
Sports-related concussions are complex injuries with biomechanical and biochemical etiology that present with central and autonomic nervous system dysfunction. Current methods for assessing concussions and basing return-to-play decisions rely on symptom resolution, rating scales, and neuropsychological testing, all of which are indirect measures of injury severity and detect functional capabilities but do not directly measure injury location or severity. In addition, these downstream measures are susceptible to false negatives because compensatory mechanism, such as unmasking and redundancies in brain circuitry can return functional capabilities before injury resolution. The multifactorial nature of concussion necessitates rapid, inexpensive, and easily applied multimodal analysis methods that can offer greater sensitivity and specificity. This article discusses how new approaches utilizing electrophysiology (e.g., QEEG, ERP, ECG, HRV), quantified balance measures, and biochemistry are necessary to advance the science of concussion assessment, treatment, recovery projections, and return-to-play decisions. These additional assessment tools offer a more direct window into the severity and location of the injury, real-time measures of brain function, and the ability to measure the multiple body systems negatively affected by concussion.
Shamoon S. Shahzada, Toby C.T. Mak, and Thomson W.L. Wong
internal focus instructions on “real-time” CMP (i.e., reinvestment) in young adults with the use of electroencephalography (EEG) coherence, which can provide further insight into the application of attentional focus instructions in clinical settings for potentially ameliorating reinvestment tendency during