Terminal CNV in the absence of motor response

Ruchkin, Daniel S.; Sutton, Samuel; Mahaffey, David L.; Glaser, Judy

doi:10.1016/0013-4694(86)90127-6

Cited by 155 publications

(47 citation statements)

References 49 publications

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“…It is likely, therefore, that the negative potential appearing for several hundred milliseconds before the probe in a memory scanning task represents, to a large extent, an expectancy for the impending temporal appearance of the probe, as originally suggested by Roth et al (1975). The scalp distribution of the pre-stimulus slow potential in the memory task when the probe occurred at a fixed interval was central-parietal maximal, which is also consistent with the distribution of the CNV reported in other studies (Ruchkin et al, 1986(Ruchkin et al, , 1987(Ruchkin et al, , 1988Brunia et al, 1988;Frost et al, 1988). The lack of a significant difference in the amplitudes of the pre-stimulus slow negativity between the two lateral sites (C3' and C4') distinguishes this slow negative shift from the Bereitschaftspotential (BP) accompanying self-paced movement which is lateralized to the hemisphere contralateral to the responding hand (Vaughan et al, 1968;Deecke et al, 1969;McCallum, 1978).…”

Section: Slow Potentialssupporting

confidence: 79%

Brain potentials before and during memory scanning

Starr¹,

Dong²,

Michalewski³

1996

Electroencephalography and Clinical Neurophysiology

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Section: Slow Potentialssupporting

confidence: 79%

Brain potentials before and during memory scanning

Starr¹,

Dong²,

Michalewski³

1996

Electroencephalography and Clinical Neurophysiology

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“…This suggests that the negative slow potential, particularly in the non-motor condition, has features similar to the CNV, and may be associated with expectancy for the upcoming target stimulus (Ruchkin et al, 1986;Brunia, 1999).…”

Section: Potentials To the Cue And Targetmentioning

confidence: 93%

“…A negative slow potential, (labeled the CNV), develops between S1 and S2. Amplitude of the CNV is sensitive to response requirements of the task, but the CNV is also present when subjects are not required to respond to S2 (Ruchkin et al, 1986). In studies of cued attention the presence of negative slow potentials between the cue and target has been noted but is typically not extensively studied (but see Harter et al, 1989;Wright et al, 1995).…”

Section: Introductionmentioning

confidence: 99%

Preparatory slow potentials and event-related potentials in an auditory cued attention task

Golob

Pratt

Starr

2002

Clinical Neurophysiology

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Objectives: To examine reaction times and event-related potentials (ERPs) in an auditory cued attention task varying motor requirements, cue validity, and cue location.Methods: Subjects ðn ¼ 13Þ listened to cue-target stimulus pairs. Verbal cues (monaural, binaural) indicated the ear to receive a target tone 1.5 s later. Cues correctly (valid) or incorrectly (invalid) predicted target ear, or were uninformative (neutral). In separate conditions subjects either responded by pressing one of two buttons, or did not respond to targets. ERPs for cues and targets (P50, N100, P200, late slow wave), and negative slow potentials between cues and targets were assessed.Results: Target reaction times for valid cues were significantly shorter than for invalid cues, with intermediate values for neutral cues. When no motor response was required larger ERPs were seen to both cues and targets. Negative slow potentials had larger amplitudes before target presentation when subjects responded to targets; and were larger following neutral, vs. valid/invalid, cues. ERPs (N100, P200) to invalidly cued targets were significantly larger and a subsequent late slow wave was more positive, relative to validly cued targets.Conclusions: Expectancy for targets begins shortly after cue presentation, and is affected by both motor requirements and the information content of the cue. ERP amplitudes to targets are modulated by the correspondence between cue information and actual target location. q

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“…The CNV is observed regardless of whether the subject makes a mental or motor response to the $2 stimulus (Donchin et al, 1972;Ruchkin et al, 1986;Frost et al, 1988). Ruchkin has argued that the presence of this negative potential preceding the $2 during mental responding to $2 is an indicator of readiness to respond, albeit mentally.…”

Section: Processes Acting To Modulate Evoked Potentialsmentioning

confidence: 99%