Psychophysiology (PSYCHOPHYSIOLOGY )

Publisher: Society for Psychophysiological Research (U.S.), Blackwell Publishing


This prestigious international journal plays a key role in advancing psychophysiological science and human neuroscience, covering research on the interrelationships between the physiological and psychological aspects of brain and behavior. A premier journal in its field, Psychophysiology reports on new theoretical, empirical and methodological advances in: psychology and psychiatry, cognitive science, cognitive and affective neuroscience, social science, health science and behavioral medicine, and biomedical engineering. The journal publishes theoretical papers, evaluative reviews of literature, empirical papers, methodological articles, meeting announcements, and fellowship opportunities.

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  • Document type
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Blackwell Publishing

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    • 'Blackwell Publishing' is an imprint of 'Wiley'
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Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: The event‐related potential (ERP) correlates of sound detection are attenuated when eliciting sounds coincide with our own actions. The role of attention in this effect was investigated in two experiments by presenting tones separated by random intervals. In the homogeneous condition of Experiments 1 and 2, the same tone was repeated, whereas in the mixed condition of Experiment 1, tones with five different frequencies were presented. Participants performed a time‐interval production task by marking intervals with keypresses in Experiment 1, and tried to produce keypress‐tone coincidences in Experiment 2. Although the auditory ERPs were attenuated for coincidences, no modulation by the multiplicity of tone frequencies in Experiment 1, or by the task‐relevancy of tones and coincidences in Experiment 2, was found. This suggests that coincidence‐related ERP attenuation cannot be fully explained by voluntary attentional mechanisms.
    Psychophysiology 01/2013; 50(3).
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    ABSTRACT: The usefulness of the event‐related potential (ERP) method can be compromised by violations of the underlying assumptions, for example, confounding variations of latency and amplitude of ERP components within and between conditions. Here we show how the ERP subtraction method might yield misleading information due to latency variability of ERP components. We propose a solution to this problem by correcting for latency variability using Residue Iteration Decomposition (RIDE), demonstrated with data from representative go/no‐go experiments. The overlap of N2 and P3 components in go/no‐go data gives rise to spurious topographical localization of the no‐go–N2 component. RIDE decomposes N2 and P3 based on their latency variability. The decomposition restored the N2 topography by removing the contamination from latency‐variable late components. The RIDE‐derived N2 and P3 give a clearer insight about their functional relevance in the go/no‐go paradigm.
    Psychophysiology 01/2013; 50(3).
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    ABSTRACT: Event‐related potential (ERP) studies of error‐processing have characterized the error‐related negativity (ERN) as a negative deflection occurring after the commission of an error at frontocentral sites. The ERN has frequently been examined in the context of individual differences and has been proposed as a neurobehavioral risk marker. Given this, it is important to characterize the psychometric properties of the ERN across multiple tasks as a function of increasing trial numbers in order to establish task‐specific psychometric properties for efficient assessments in clinical or applied settings. The current study examines the internal reliability of the ERN across the flankers, Stroop, and go/no‐go tasks as a function of error number. Results suggest that although the tasks all elicit the ERN reliably, important psychometric differences emerged indicating that the flankers task might be prioritized when assessing the ERN.
    Psychophysiology 01/2013; 50(12).
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    ABSTRACT: We investigated how proactive and reactive control facilitates performance in mixed stimulus–response compatibility (SRC) tasks. SRC effects were eliminated in mixed tasks and reversed following incompatible trials. In mixed tasks, early preferential response activation was present in stimulus‐locked lateralized readiness potentials (LRPs) but reduced following incompatible trials. In event‐related potentials (ERPs), stimulus‐locked N2 was enhanced in all mixed trials but was not significantly influenced by the preceding trial. A response‐locked fronto‐central negative component (N‐120), peaking just before the response, was largest for mixed compatible trials preceded by incompatible trials. This N‐120 was paired with an enhancement to the peak of the response‐locked LRP. Proactive control is involved in selection of an S‐R mapping via the indirect route of a dual‐route model. Reactive control corrects the S‐R mapping, particularly when alternating between S‐R mappings.
    Psychophysiology 01/2012; 49(6).
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    ABSTRACT: Despite the P300‐Concealed Information Test's validity in detecting concealed memory when it is conducted immediately after the mock crime, whether the P300‐CIT's detection efficiency is moderated by time delay remains unknown. Here, we conducted a mock crime study in which guilty participants were tested immediately after the mock crime or 1 month later. An innocent group was also tested. Assuming that the autobiographical Implicit Association Test (aIAT) and the P300‐CIT rely on nonoverlapping mechanisms for memory detection, participants were tested using both the P300‐CIT and the reaction time (RT)–based aIAT. Results suggested that the sensitivity of both tests remains even after the 1‐month delay. The indicators from the RT‐aIAT and P300‐CIT were uncorrelated, thus combining P300‐CIT and aIAT data further increased the efficiency of memory detection.
    Psychophysiology 01/2012; 49(8).
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    ABSTRACT: We aimed to investigate whether fear of suffocation predicts healthy persons' respiratory and affective responses to obstructed breathing as evoked by inspiratory resistive loads. Participants (N = 27 women, ages between 18 and 21 years) completed the Fear of Suffocation scale and underwent 16 trials in which an inspiratory resistive load of 15 cmH2O/l/s (small) or 40 cmH2O/l/s (large) was added to the breathing circuit for 40 s. Fear of suffocation was associated with higher arousal ratings for both loads. Loaded breathing was associated with a decrease in minute ventilation, but progressively less so for participants scoring higher on fear of suffocation when breathing against the large load. The present findings document a potentially panicogenic mechanism that may maintain and worsen respiratory discomfort in persons with fear of suffocation.
    Psychophysiology 01/2012; 49(6).
  • Psychophysiology 01/2011; 48(1).
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    ABSTRACT: According to recent models of selective attention, processing of task-irrelevant stimuli is abolished when attentional resources are fully consumed by task-relevant material (high load). However, task-irrelevant familiar faces can elicit repetition-related neural modulations despite high load at initial presentation (Neumann & Schweinberger, 2008). Although faces may access a face-specific attention resource, it is also possible that the processing of familiar faces requires very little general attention resources. In Experiment 1 we tested whether task-irrelevant unfamiliar faces also elicit repetition modulations under high load. Participants performed a letter identification task by indicating whether an “X” vs. “N” was among 6 different (high load) or 6 identical (low load) letters. Letter strings were superimposed on task-irrelevant faces. Following letter identification, participants detected occasional butterflies among S2 probes, which were either identical repetitions of S1 faces or new faces. ERPs revealed an occipito-temporal N250r-repetition effect to unfamiliar faceat was unaffected by load at S1 presentation. In Experiment 2 we tested whether preserved encoding under high load is specific for faces, employing hands and houses as additional categories. Body parts have been discussed to attract attention in a similar fashion as faces , and therefore appear likely candidates for preserved encoding under high load. However, while N250r-repetition effects were replicated for faces, repetition-related neural modulations were absent under high load for both houses and hands. This strongly suggests that encoding under high load is mediated by a separate face-specific attention resource, which cannot facilitate encoding of body parts or artificial objects.
    Psychophysiology 09/2009; 46(46):S134-S135.
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    ABSTRACT: In visual oddball studies, deviant compared to standard stimuli elicited a posterior negative ERP at around 100-250 ms. To determine the underlying processes of the negativity, we used the equiprobable sequence in which bar stimuli of five types of orientation were presented with equal probabilities (control 20% each) as well as the oddball sequence in which two stimuli with the closest orientation were presented with different probabilities (deviant 20% and standard 80%). Deviant compared to standard stimuli elicited two negativities at around 100-150 ms with no hemispheric dominance and 200-250 ms with right hemispheric dominance, while deviant compared to control stimuli elicited only a negativity at around 200-250 ms with right hemispheric dominance. These results suggest that the early negativity reflects refractory effect, while the late negativity reflects memory-comparison-based change detection effect (visual mismatch negativity).
    Psychophysiology 02/2009; 46(2):402-9.
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    ABSTRACT: The visceral afferent feedback hypothesis proposes that sensorimotor function is impaired by cortical inhibition associated with increased baroreceptor activation. This study is the first to examine the effects of naturally occurring variations in baroreceptor activity across the cardiac cycle on cutaneous sensory detection thresholds. In each trial, an electrocutaneous stimulus was delivered to the index finger at one of three intervals (0, 300, 600 ms) after the R-wave of the electrocardiogram. Separate interleaving up-down staircases were used to determine the 50% detection threshold for each R-wave to stimulation interval. Cutaneous sensory detection thresholds were lower for stimuli presented at R+300 ms than R+0 ms or R+600 ms. The finding that cutaneous sensibility was greater when stimulated during systole than diastole may be accounted for by a modified afferent feedback hypothesis.
    Psychophysiology 02/2009; 46(2):252-6.
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    ABSTRACT: When we pay attention to one task, irrelevant changes may interfere. The effect of changes on behavioral and electrophysiological responses has been studied in two separate research fields: Research on Distraction states that a rare irrelevant change takes attention away from the primary task. Research on Sequences states that any change in stimulus or response incurs a cost or benefit depending on the kind of change. To disentangle distraction from sequence effects, we made task-irrelevant changes rare in one condition and frequent in another while also assessing stimulus and response changes from trial to trial. Participants used key presses to classify syllables presented in two different, irrelevant voice pitches. We found that distraction and sequence interacted to alter reaction times and errors on the primary task and also to alter ERP markers of distraction (P3a). The sequential effects cannot, however, fully account for distraction.
    Psychophysiology 02/2009; 46(2):425-38.