Lateralized frontal activity elicited by attention‐directing visual and auditory cues

Green, Jessica J.; Conder, Julie; McDonald, John J.

doi:10.1111/j.1469-8986.2008.00657.x

Cited by 53 publications

(44 citation statements)

References 27 publications

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“…rather suggests that the ADAN reflects processes that are, at least in part, modality specific (Green et al, 2005;Green and McDonald, 2006; but see also Seiss et al, 2007). Correspondingly, Green et al (2008) have recently suggested that the ADAN reflects multiple neural generators that U N C O R R E C T E D P R O O F are differentially modulated by task parameters, such as cue modality and response related processes.…”

Section: Discussionmentioning

confidence: 99%

ERP correlates of tactile spatial attention differ under intra- and intermodal conditions

Förster

Sambo

Pavone

2009

Biological Psychology

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This is the accepted version of the paper.This version of the publication may differ from the final published version. The majority of spatial attention research has investigated processes related to the orienting of attention and selection of information within the visual system. In recent years the number of studies investigating the ability to orient attention to locations on the body and to selectively attend to tactile information has increased (see Spence and Gallace, 2007 for review). These studies have shown that also in the tactile modality attention can be oriented voluntarily (endogenously) and reflexively (exogenously) to locations on the body. Electrophysiological and brain imaging studies have reported that early somatosensory processing is modulated by tactile spatial attention (e.g. Michie, 1984;Roland, 1981), while behavioural studies of endogenous tactile attention have found that orienting attention to a location on the body both speeds reaction times (RT) and enhances discrimination of tactile stimuli at that location (see Johansen-Berg and Lloyd, 2000 or Spence, 2002 for reviews). Permanent repository linkEndogenous tactile attention can be oriented to a location on the body either in a sustained fashion over longer periods of time or in a transient fashion following informative cues indicating the subsequent stimulus location. Most studies investigating transient endogenous tactile attention have employed either auditory or visual cues to orient participants' attention. Indication that endogenous tactile attention is influenced by the sensory modality of the attention directing cues comes from a recent behavioural study by Chica et al. (2007). In their study participants oriented their attention to tactile target locations following either visual or tactile unilateral cues. Behavioural endogenous attention effects were larger when cue and target were presented in the same sensory modality than when they were presented in different sensory modalities (see also Mondor and Amirault, 1998). Importantly, this result indicates that processes related to endogenous tactile attention, that is attentional orienting to locations on the body and somatosensory stimulus processing, may in part be dependent on the sensory modality of the attention directing cue. Both brain imaging and electrophysiological studies have begun to investigate the mechanisms underlying attentional orienting. While fMRI studies have revealed an attention network of frontal and parietal activity during the cue-stimulus interval, electrophysiological studies have now started to unravel the temporal pattern of changes in brain activity during the interval between the onset of an attention directing cue and the onset of a subsequent imperative stimulus in cue-locked event-related brain potentials (ERPs). These studies have shown that two successive lateralised ERP components are elicited which are sensitive to the direction of the cued attentional shift (e.g. Hopf and Mangun, 2000;Nobre et al., 2000;. More specifically, following c...

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Section: Discussionmentioning

confidence: 99%

ERP correlates of tactile spatial attention differ under intra- and intermodal conditions

Förster

Sambo

Pavone

2009

Biological Psychology

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“…A semi-automated procedure was used to discard epochs of EEG contaminated by blinks, eye movements, or excessive noise (Green et al, 2008). Any trial with an artifact within a 1 s interval (Ϫ200 to 800 ms poststimulus) was rejected.…”

Section: Methodsmentioning

confidence: 99%

Suppression of Salient Objects Prevents Distraction in Visual Search

2014

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To find objects of interest in a cluttered and continually changing visual environment, humans must often ignore salient stimuli that are not currently relevant to the task at hand. Recent neuroimaging results indicate that the ability to prevent salience-driven distraction depends on the current level of attentional control activity in frontal cortex, but the specific mechanism by which this control activity prevents salience-driven distraction is still poorly understood. Here, we asked whether salience-driven distraction is prevented by suppressing salient distractors or by preferentially up-weighting the relevant visual dimension. We found that salient distractors were suppressed even when they resided in the same feature dimension as the target (that is, when dimensional weighting was not a viable selection strategy). Our neurophysiological measure of suppression-the P D component of the event-related potential-was associated with variations in the amount of time it took to perform the search task: distractors triggered the P D on fast-response trials, but on slow-response trials they triggered activity associated with working memory representation instead. These results demonstrate that during search salience-driven distraction is mitigated by a suppressive mechanism that reduces the salience of potentially distracting visual objects.

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“…For instance, the onset of the ADAN is delayed when it is more difficult to derive cue meaning (Jongen, Smulders, & Van Der Heiden, 2007). The amplitude of this component is also sensitive to other cue characteristics like the certainty with which it predicts target location (Seiss, Gherri, Eardley & Eimer, 2007;Green, Conder & McDonald, 2008). In addition, the amplitude of the ADAN is increased by spatial attention task demands when task irrelevant distractors are presented simultaneously with the target (Seiss, Driver & Eimer, 2009).…”

Section: Introductionmentioning

confidence: 99%

Cue‐locked lateralized components in a tactile spatial attention task: Evidence for a functional dissociation between ADAN and LSN

2015

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Citation: Gherri, E., Gooray, E. & Forster, B. (2016). Cue-locked lateralized components in a tactile spatial attention task: Evidence for a functional dissociation between ADAN and LSN. Psychophysiology, 53(4), pp. 507-517. doi: 10.1111/psyp.12596 This is the accepted version of the paper.This version of the publication may differ from the final published version. Permanent Author NotesThe study was conducted in the Cognitive Neuroscience Suite of the University of Edinburgh and the authors would like to thank Shyla Hossain and Chrysa Retsa for their help with data collection. 2 AbstractERP studies investigating the control processes responsible for spatial orienting in touch have consistently observed that the anterior directing attention negativity (ADAN) elicited by an attention directing cue is followed by a sustained negativity contralateral to the cued hand.Recent evidence suggested that the later negativity, labelled late somatotopic negativity (LSN), might reflect distinct neuro-cognitive processes from those associated with the ADAN. To investigate the functional meaning of the ADAN and LSN components, we measured eventrelated brain potentials elicited by bilateral tactile cues indicating to covertly shift tactile attention to the left or right hand. Participants performed two spatial attention tasks which differed only for the difficulty of the target/nontarget discrimination at attended locations. The LSN but not the ADAN was sensitive to our experimental manipulation of task difficulty, suggesting that this component might reflect sensory-specific preparatory processes prior to a forthcoming tactile stimulus.Running Head: Cue-locked lateralized components in tactile attention tasks

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Lateralized frontal activity elicited by attention‐directing visual and auditory cues

Cited by 53 publications

References 27 publications

ERP correlates of tactile spatial attention differ under intra- and intermodal conditions

ERP correlates of tactile spatial attention differ under intra- and intermodal conditions

Suppression of Salient Objects Prevents Distraction in Visual Search

Cue‐locked lateralized components in a tactile spatial attention task: Evidence for a functional dissociation between ADAN and LSN

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