Event-related potentials as indices of display-monitoring performance

Trejo, Leonard J.; Kramer, Arthur F.; Arnold, Josh A.

doi:10.1016/0301-0511(95)05103-1

Cited by 27 publications

(18 citation statements)

References 27 publications

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“…In the control tasks, there was only a slight attenuation with increasing number of probes. Such modulations have also been reported in previous experiments using the irrelevant probe technique (i.e., Trejo, Kramer, & Arnold, 1995). In the switch task, however, the P3 responses to the late probes were substantially attenuated.…”

Section: Effect On the P3 Componentsupporting

confidence: 66%

Probing the Prerequisites for Motion Blindness

Niedeggen

Hesselmann

Sahraie

et al. 2004

Journal of Cognitive Neuroscience

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Neurobiological studies of visual awareness usually focus on the neural events elicited by perceived or nonperceived stimuli but neglect the preexisting conditions that allow (or prevent) conscious perception. We have examined the conditions that lead to temporary motion blindness in a rapid serial visual presentation paradigm, in which subjects have to detect coherent motion in the peripheral stream after a cue (a red fixation point) in the central stream. The failure of awareness depends critically on the occurrence of similar coherent motion events (probes) before the cue. Event-related brain potentials (ERPs) were recorded to track the processing of motion distractors, which determine the prerequisites for this transient deficit. Analysis of motion-evoked responses revealed that there is no progressive reduction in sensitivity in early visual processing. There is, however, a progressive increase in amplitude of a negative wave over the frontal cortex at approximately 250 msec after motion onset and a corresponding reduction of a centro-parietal positivity at approximately 350 msec with an increasing number of distractors. We propose that these nonsensory ERP components reflect a postperceptual frontal gating mechanism that controls the access of visual stimuli to higher order evaluation and conscious detection.

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Section: Effect On the P3 Componentsupporting

confidence: 66%

Probing the Prerequisites for Motion Blindness

Niedeggen

Hesselmann

Sahraie

et al. 2004

Journal of Cognitive Neuroscience

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“…Congruent results pertaining to a reflection of perceptual accuracy in the evoked potential are derived from studies using visual and auditory stimuli (Devrim, Demiralp, Kurt, & Yu¨kcesir, 1999;Hillyard, Squires, Bauer, & Lindsay, 1971;Picton, Hillyard, Krausz, & Galambos, 1974;Trejo, Kramer, & Arnold, 1995). Trejo et al, for example, found that the detection of visual stimuli at sensory threshold is positively related to the P300 amplitude.…”

Section: Discussionmentioning

confidence: 99%

Accuracy of heartbeat perception is reflected in the amplitude of the heartbeat‐evoked brain potential

2004

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Neurotransmission from the heart to the brain results in a heartbeat-evoked potential (HEP). In this study, the influence of the ability to detect one's heartbeats based on the HEP was examined. According to their results in a heartbeat perception task, subjects were classified as good (n 5 18) or poor (n 5 26) heartbeat perceivers. EEG, EOG, and ECG were recorded while participants attended to their heartbeats. The R-wave of the ECG served as a trigger for EEG averaging. In the latency range of 250-350 ms after the ECG R-wave, the HEP amplitude at the right central location was significantly higher in good heartbeat perceivers. A significantly positive correlation was observed between the heartbeat perception score and the mean HEP amplitude. Our results confirm that the accuracy of heartbeat perception is reflected in the amplitude of the HEP. Thus, the HEP may be a suitable research tool for the study of brain processes related to visceral perception.

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“…Three different tasks were tested in the following order: (1) in a simple oddball detection task (used as control condition) Trejo et al, 1995), the participants were instructed to respond as quickly as possible by pressing a button with their right hand as soon as they detected a target (infrequent tones). Notes: Data are presented as mean (SD).…”

Section: Experimental Designmentioning

confidence: 99%

Assessment of mental workload: A new electrophysiological method based on intra-block averaging of ERP amplitudes

et al. 2016

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The present study contributes to the current debate about electrophysiological measurements of mental workload. Specifically, the allocation of attentional resources during different complexity levels of tasks and its changes over time are of great interest. Therefore, we investigated mental workload using tasks varying in difficulty during an auditory oddball target paradigm. For data analysis, we applied a novel method to compute event-related potentials (ERPs) by intra-block epoch averaging of P2, P3a and P3b amplitude components for the infrequent target stimuli. We obtained eight consecutive blocks of 5 epochs each, which allowed us to develop an electrophysiological parameter to measure mental workload. In both the easy and the more constraining tasks, the amplitude of P2 decreased beginning with the second block of the sequence. In contrast, the amplitudes of P3a and P3b components linearly decreased following the repetition of the target in the more constraining task, but not in the easy task. Statistical analysis revealed intra-block differences on amplitudes of ERPs of interest between the easy and the more constraining tasks, confirming this method as a measure to assess mental workload. Since a subject is his own control, the present method represents an electrophysiological parameter for individual measurement of mental workload and may therefore be applicable in clinical routine.

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Event-related potentials as indices of display-monitoring performance

Cited by 27 publications

References 27 publications

Probing the Prerequisites for Motion Blindness

Probing the Prerequisites for Motion Blindness

Accuracy of heartbeat perception is reflected in the amplitude of the heartbeat‐evoked brain potential

Assessment of mental workload: A new electrophysiological method based on intra-block averaging of ERP amplitudes

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