Characteristics of cranial and facial potentials associated with speech production

Szirtes, J.; Vaughan, Herbert G.

doi:10.1016/0013-4694(77)90261-9

Cited by 32 publications

(15 citation statements)

References 16 publications

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“…It has been long known that speech produces large artifacts in an EEG record (Szirtes and Vaughan, 1977) which precede as well as follow verbalizations by about 1 s. This fact is what initially prompted us (Rosenfeld and Woodley, 1994) to utilize silent (mental) responding, as we will do more systematically, here. Both previously and presently, we observe clear evidence of speech artifact during verbalization trials at all sites.…”

Section: Introductionmentioning

confidence: 94%

P300-based Stroop study with low probability and target Stroop oddballs: The evidence still favors the response selection hypothesis

Rosenfeld

Skogsberg

2006

International Journal of Psychophysiology

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Section: Introductionmentioning

confidence: 94%

P300-based Stroop study with low probability and target Stroop oddballs: The evidence still favors the response selection hypothesis

Rosenfeld

Skogsberg

2006

International Journal of Psychophysiology

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“…Investigators can monitor these artifacts with electrodes over the cheeks and below the jaw~realizing that these electrodes will pick up ocular as well as glossokinetic artifacts!. Several authors have suggested that these potentials are so large and variable that it is impossible to record cerebral ERPs associated with speech production~Brooker & Donald, 1980; Szirtes & Vaughan, 1977!.…”

Section: (I) Possible Noncerebral Artifacts Should Be Monitoredmentioning

confidence: 99%

Guidelines for using human event-related potentials to study cognition: Recording standards and publication criteria

et al. 2000

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Event-related potentials~ERPs! recorded from the human scalp can provide important information about how the human brain normally processes information and about how this processing may go awry in neurological or psychiatric disorders. Scientists using or studying ERPs must strive to overcome the many technical problems that can occur in the recording and analysis of these potentials. The methods and the results of these ERP studies must be published in a way that allows other scientists to understand exactly what was done so that they can, if necessary, replicate the experiments. The data must then be analyzed and presented in a way that allows different studies to be compared readily. This paper presents guidelines for recording ERPs and criteria for publishing the results.Descriptors: Event-related potentials, Methods, Artifacts, Measurement, Statistics Event-related potentials~ERPs! are voltage fluctuations that are associated in time with some physical or mental occurrence. These potentials can be recorded from the human scalp and extracted from the ongoing electroencephalogram~EEG! by means of filtering and signal averaging. Although ERPs can be evaluated in both frequency and time domains, these particular guidelines are concerned with ERPs recorded in the time domain, that is, as waveforms that plot the change in voltage as a function of time. These waveforms contain components that span a continuum between the exogenous potentials~obligatory responses determined by the physical characteristics of the eliciting event in the external world! and the endogenous potentials~manifestations of information processing in the brain that may or may not be invoked by the eliciting event!.1 Because the temporal resolution of these measurements is on the order of milliseconds, ERPs can accurately measure when processing activities take place in the human brain. The spatial resolution of ERP measurements is limited both by theory and by our present technology, but multichannel recordings can allow us to estimate the intracerebral locations of these cerebral processes. The temporal and spatial information provided by ERPs may be used in many different research programs, with goals that range from understanding how the brain implements the mind to making specific diagnoses in medicine or psychology. Data cannot have scientific value unless they are published for evaluation and replication by other scientists. These ERP guidelines are therefore phrased primarily in terms of publication criteria. The scientific endeavor consists of three main steps, and these map well onto the sections of the published paper. The first step is the most important but the least well understood-the discovery of Address reprint requests to: Terence W. Picton, Rotman Research Institute,

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“…By comparison, it has been shown that tactile stimulation of the tongue results in large artifacts in the recorded, cortically evoked potentials [3], presumably because the associated tongue motion generates shifts in the electrophysiological recording. Furthermore, tongue movements during speech can induce signi®cant alterations in the measured pattern of electroencephalography (EEG) that are unrelated to cortical neural activity and may even mimic sources with asymmetric interhemisphere ®elds [4,5]. These ®ndings suggest that measurements of cortical potentials associated with orofacial motor activities may be subject to considerable signal artifact problems.…”

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confidence: 98%

Magnetoencephalographic Response Characteristics Associated with Tongue Movement

2001

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Whole-head magnetoencephalography (MEG) was employed to study the sources of activation evoked by both active tongue movement and swallowing in five healthy subjects. Evoked magnetic fields were adequately explained in both paradigms by a time-varying single-dipole model which localized in the tongue in all subjects. No additional brain sources were detectable. Therefore, MEG detects fields associated with tongue movement that best fit a single-dipole source in the tongue. Future electrophysiological brain activation studies where tongue movement is likely should be aware of this observation since the tongue behaves like a strong current dipole.

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Characteristics of cranial and facial potentials associated with speech production

Cited by 32 publications

References 16 publications

P300-based Stroop study with low probability and target Stroop oddballs: The evidence still favors the response selection hypothesis

P300-based Stroop study with low probability and target Stroop oddballs: The evidence still favors the response selection hypothesis

Guidelines for using human event-related potentials to study cognition: Recording standards and publication criteria

Magnetoencephalographic Response Characteristics Associated with Tongue Movement

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