Inhibition of Return, but Not Facilitation, Disappears Under Vigilance Decrease Due to Sleep Deprivation

2014 ◽  
Vol 61 (2) ◽  
pp. 99-109 ◽  
Author(s):  
Diana Martella ◽  
Andrea Marotta ◽  
Luis J. Fuentes ◽  
Maria Casagrande
Keyword(s):  
Sleep Deprivation ◽  
Inhibition Of Return ◽  
Target Location ◽  
Reaction Times ◽  
Attentional Orienting ◽  
Target Interval ◽  
Facilitation Effect ◽  
Peripheral Cues ◽  
Endogenous Component ◽  
Phasic Alerting

In this study, we assessed whether unspecific attention processes signaled by general reaction times (RTs), as well as specific facilitatory (validity or facilitation effect) and inhibitory (inhibition of return, IOR) effects involved in the attentional orienting network, are affected by low vigilance due to both circadian factors and sleep deprivation (SD). Eighteen male participants performed a cuing task in which peripheral cues were nonpredictive about the target location and the cue-target interval varied at three levels: 200 ms, 800 ms, and 1,100 ms. Facilitation with the shortest and IOR with the longest cue-target intervals were observed in the baseline session, thus replicating previous related studies. Under SD condition, RTs were generally slower, indicating a reduction in the participants’ arousal level. The inclusion of a phasic alerting tone in several trials partially compensated for the reduction in tonic alertness, but not with the longest cue-target interval. With regard to orienting, whereas the facilitation effect due to reflexive shifts of attention was preserved with sleep loss, the IOR was not observed. These results suggest that the decrease of vigilance produced by SD affects both the compensatory effects of phasic alerting and the endogenous component involved in disengaging attention from the cued location, a requisite for the IOR effect being observed.

scholarly journals Endogenous orienting in the archer fish

2017 ◽  
Vol 114 (29) ◽  
pp. 7577-7581 ◽  
Author(s):  
William Saban ◽  
Liora Sekely ◽  
Raymond M. Klein ◽  
Shai Gabay
Keyword(s):  
Inhibition Of Return ◽  
Reaction Times ◽  
Volitional Control ◽  
Reflexive Orienting ◽  
Facilitation Effect ◽  
Endogenous Orienting ◽  
Attention Orienting ◽  
Spatial Orienting ◽  
Human Attention ◽  
Human Participants

The literature has long emphasized the neocortex’s role in volitional processes. In this work, we examined endogenous orienting in an evolutionarily older species, the archer fish, which lacks neocortex-like cells. We used Posner’s classic endogenous cuing task, in which a centrally presented, spatially informative cue is followed by a target. The fish responded to the target by shooting a stream of water at it. Interestingly, the fish demonstrated a human-like “volitional” facilitation effect: their reaction times to targets that appeared on the side indicated by the precue were faster than their reaction times to targets on the opposite side. The fish also exhibited inhibition of return, an aftermath of orienting that commonly emerges only in reflexive orienting tasks in human participants. We believe that this pattern demonstrates the acquisition of an arbitrary connection between spatial orienting and a nonspatial feature of a centrally presented stimulus in nonprimate species. In the literature on human attention, orienting in response to such contingencies has been strongly associated with volitional control. We discuss the implications of these results for the evolution of orienting, and for the study of volitional processes in all species, including humans.

Differential Effects of Lowered Arousal on Covert and Overt Shifts of Attention

2015 ◽  
Vol 21 (7) ◽  
pp. 545-557 ◽  
Author(s):  
Bruno Fimm ◽  
Klaus Willmes ◽  
Will Spijkers
Keyword(s):  
Sleep Deprivation ◽  
Reaction Times ◽  
Brain Structures ◽  
Attentional Orienting ◽  
Tight Coupling ◽  
Attentional Processes ◽  
Differential Effects ◽  
Norepinephrine System ◽  
Left And Right ◽  
Healthy Participants

AbstractBased on previous studies demonstrating detrimental effects of reduced alertness on attentional orienting our study seeks to examine covert and overt attentional orienting in different arousal states. We hypothesized an attentional asymmetry with increasing reaction times to stimuli presented to the left visual field in a state of maximally reduced arousal. Eleven healthy participants underwent sleep deprivation and were examined repeatedly every 4 hr over 28 hr in total with two tasks measuring covert and overt orienting of attention. Contrary to our hypothesis, a reduction of arousal did not induce any asymmetry of overt orienting. Even in participants with profound and significant attentional asymmetries in covert orienting no substantial reaction time differences between left- and right-sided targets in the overt orienting task could be observed. This result is not in agreement with assumptions of a tight coupling of covert and overt attentional processes. In conclusion, we found differential effects of lowered arousal induced by sleep deprivation on covert and overt orienting of attention. This pattern of results points to a neuronal non-overlap of brain structures subserving these functions and a differential influence of the norepinephrine system on these modes of spatial attention. (JINS, 2015,21, 545–557)

Inhibition of return following instructions to remember and forget

2005 ◽  
Vol 58 (4) ◽  
pp. 613-629 ◽  
Author(s):  
Tracy L. Taylor
Keyword(s):  
Recognition Test ◽  
Inhibition Of Return ◽  
Reaction Times ◽  
Directed Forgetting ◽  
Attentional Orienting ◽  
Peripheral Location ◽  
Following Instructions ◽  
Preceding Word

Inhibition of return (IOR) refers to slowed responding to a target that appears in the same rather than in a different location as a preceding peripheral onset cue. This study examined IOR as a function of whether the peripheral onset cue was a word that participants were directed to remember or forget. Using a modified item-method directed forgetting paradigm, words appeared one at a time to the left or right, followed by a remember or forget instruction. A target dot was then presented either in the same peripheral location as the preceding word or in a different location; participants made a speeded response to localize this target. Confirming compliance with the memory instructions, recall tests that alternated with blocks of IOR trials (Experiment 1) revealed few intrusions of to-be-forgotten words, and a final recognition test (Experiments 1 and 3) revealed more hits for to-be-remembered words than for to-be-forgotten words. Reaction times to the target dot revealed greater magnitude IOR following to-be-forgotten words than following to-be-remembered words (Experiments 1 and 3). Moreover, when compared to baseline IOR values (Experiment 2), it appeared that this difference resulted from a magnification of IOR following forget instructions and a reduction in IOR following remember instructions. These results demonstrate the usefulness of IOR as an index of memorial processes and suggest that attentional orienting may play a role in the remembering and forgetting of words presented in peripheral visual locations.

Twenty-Four Hours of Total Sleep Deprivation Selectively Impairs Attentional Networks

2012 ◽  
Vol 59 (3) ◽  
pp. 115-123 ◽  
Author(s):  
Davide Jugovac ◽  
Corrado Cavallero
Keyword(s):  
Sleep Deprivation ◽  
Executive Control ◽  
Reaction Times ◽  
Attention Network Test ◽  
Control Efficacy ◽  
Performance Deficits ◽  
Attentional Deficits ◽  
Attentional Networks ◽  
The Impact ◽  
Phasic Alerting

Performance decrements after sleep loss have been extensively studied and are usually attributed to generic attentional deficits. This claim, however, is based on the view of attention as a unitary construct, despite evidence that it should be considered a multidimensional cognitive ability. The aim of the present study was to evaluate the impact of one night of sleep deprivation on the efficiency of three attentional networks, defined by Posner and Raichle (1994) in anatomical and functional terms, as alerting, orienting, and executive control. Thirty participants performed the Attention Network Test at 9:00 a.m. following two different sleep conditions: baseline (a normal night of sleep) and deprivation (24 hrs of wakefulness). Results showed an overall slowing in reaction times and a significant decrease in accuracy after sleep deprivation. Sleep deprivation selectively affected the three attentional networks, given that only executive control efficacy significantly decreased after sleep deprivation. By contrast, phasic alerting and orienting showed no differences in the two sleep conditions. Thus, performance deficits following sleep deprivation do not reflect global attentional deficits.

scholarly journals The contribution of forward masking to saccadic inhibition of return

2017 ◽  
Author(s):  
David Souto ◽  
Sabine Born ◽  
Dirk Kerzel
Keyword(s):  
Inhibition Of Return ◽  
Target Location ◽  
Reaction Times ◽  
Gain Control ◽  
Forward Masking ◽  
Contrast Gain ◽  
Contrast Gain Control ◽  
Saccadic Reaction Times ◽  
Return Effect

Inhibition of return is the name typically given to the prolonged latency of motor responses directed to a previously cued target location. There is intense debate about the origins of this effect and its function, but most take for granted (despite lack of evidence) that it depends little on forward masking. Therefore, we re-examined the role of forward masking in inhibition of return. Forward masking was indexed by slower saccadic reaction times (SRTs) when the target orientation repeated the cue orientation at the same location. We confirmed effects of orientation repetition in the absence of an attentional bias when cues were presented on both sides of fixation (bilateral presentation). The effect of orientation repetition was reduced with high target contrast, consistent with a low-level origin such as contrast gain control in early visual areas. When presenting cues on only one side of fixation (unilateral presentation), we obtained inhibition of return with longer cue-target intervals and facilitation with targets presented shortly after the cue. The effect of orientation repetition was reduced when facilitation was observed, but was as strong as with bilateral cues when inhibition of return was observed. Therefore, forward masking may contribute to the inhibition of return effect by delaying reaction times to repeated features at the same location, but is not a principal cause of inhibition of return; in agreement with previous views.

Covert orienting of attention in macaques. I. Effects of behavioral context

1993 ◽  
Vol 70 (1) ◽  
pp. 431-443 ◽  
Author(s):  
E. M. Bowman ◽  
V. J. Brown ◽  
C. Kertzman ◽  
U. Schwarz ◽  
D. L. Robinson
Keyword(s):  
Cognitive Processes ◽  
Reaction Times ◽  
Orienting Response ◽  
Validity Effect ◽  
Experimental Conditions ◽  
Covert Orienting ◽  
Cognitive Influences ◽  
Attentional Effect ◽  
Peripheral Cues ◽  
Neurophysiological Studies

1. A task was used by Posner (1980) to measure shifts of attention that occurred covertly, in the absence of an eye movement or other orienting response. This paradigm was used here to assess the nature of covert attentional orienting in monkeys to develop an animal model for neurophysiological studies. Shifts of attention were measurable in monkeys and were consistent across a variety of experimental conditions. 2. The paradigm required that monkeys fixate and release a bar at the appearance of a target, which was preceded by a cue. Reaction times to targets that followed peripheral cues at the same location (validly cued) were significantly faster than those that followed cues in the opposite visual field (invalidly cued). This difference was defined as the validity effect, which as in humans, is used as the measure of a covert attentional shift. 3. When the proportion of validly to invalidly cued targets was decreased, no change was seen in the validity effect of the monkeys. This is in contrast to humans, for whom the ratio of validly to invalidly cued targets affected the magnitude of the validity effect. When 80% of the targets were preceded by cues at the same location, the validity effect was greatest. The effect was reversed when the proportions were reversed. From this result, it is concluded that cognitive processes can affect covert orienting to peripheral cues in humans, whereas in trained monkeys, performance was automatic. 4. To test whether cognitive influences on attention could be demonstrated in the monkey, an animal was taught to use symbolic, foveal signals to covertly direct attention. The magnitude of this validity effect was greater than that obtained with peripheral cues. 5. The effects of motivational and perceptual processes were tested. Although overall reaction times could be modified, the facilitating effects of the cues persisted. This constancy across motivational and perceptual levels supports the notion that the monkeys were performing the task in an automatic way, under the exogenous control of peripheral cues. 6. Most visual cuing has been tested with visual landmarks at the locations of cues and targets. These monkeys were trained with such landmarks, and when tested without them, the attentional effect of the cues was nearly abolished. These data suggest that local visual features can be important for covert orienting. 7. To determine the spatial extent of the effect of the cue, monkeys and humans were tested with four cue-target distances (0-60 degrees).(ABSTRACT TRUNCATED AT 400 WORDS)

scholarly journals Inhibitory and Facilitatory Cueing Effects: Competition between Exogenous and Endogenous Mechanisms

Vision ◽  
2019 ◽  
Vol 3 (3) ◽  
pp. 40 ◽  
Author(s):  
Alfred Lim ◽  
Vivian Eng ◽  
Caitlyn Osborne ◽  
Steve M. J. Janssen ◽  
Jason Satel
Keyword(s):  
Behavioral Inhibition ◽  
Inhibition Of Return ◽  
Reaction Times ◽  
Target Onset ◽  
Saccadic Reaction Times ◽  
Series Of Experiments ◽  
Endogenous Activity ◽  
Onset Asynchrony ◽  
Delayed Responses

Inhibition of return is characterized by delayed responses to previously attended locations when the cue-target onset asynchrony (CTOA) is long enough. However, when cues are predictive of a target’s location, faster reaction times to cued as compared to uncued targets are normally observed. In this series of experiments investigating saccadic reaction times, we manipulated the cue predictability to 25% (counterpredictive), 50% (nonpredictive), and 75% (predictive) to investigate the interaction between predictive endogenous facilitatory (FCEs) and inhibitory cueing effects (ICEs). Overall, larger ICEs were seen in the counterpredictive condition than in the nonpredictive condition, and no ICE was found in the predictive condition. Based on the hypothesized additivity of FCEs and ICEs, we reasoned that the null ICEs observed in the predictive condition are the result of two opposing mechanisms balancing each other out, and the large ICEs observed with counterpredictive cueing can be attributed to the combination of endogenous facilitation at uncued locations with inhibition at cued locations. Our findings suggest that the endogenous activity contributed by cue predictability can reduce the overall inhibition observed when the mechanisms occur at the same location, or enhance behavioral inhibition when the mechanisms occur at opposite locations.

scholarly journals Tracking intermediate performance of vigilant attention using multiple eye metrics

SLEEP ◽  
2020 ◽  
Vol 43 (3) ◽  
Author(s):  
Takashi Abe ◽  
Kazuo Mishima ◽  
Shingo Kitamura ◽  
Akiko Hida ◽  
Yuichi Inoue ◽  
...  
Keyword(s):  
Sleep Deprivation ◽  
Human Error ◽  
Reaction Times ◽  
Simultaneous Recording ◽  
Time On Task ◽  
The Novel ◽  
Eyelid Closure ◽  
Psychomotor Vigilance Test ◽  
Falling Asleep ◽  
Novel Algorithm

Abstract Vigilance deficits account for a substantial number of accidents and errors. Current techniques to detect vigilance impairment measure only the most severe level evident in eyelid closure and falling asleep, which is often too late to avoid an accident or error. The present study sought to identify ocular biometrics of intermediate impairment of vigilance and develop a new technique that could detect a range of deficits in vigilant attention (VA). Sixteen healthy adults performed well-validated Psychomotor Vigilance Test (PVT) for tracking vigilance attention while undergoing simultaneous recording of eye metrics every 2 hours during 38 hours of continuous wakefulness. A novel marker was found that measured VA when the eyes were open—the prevalence of microsaccades. Notably, the prevalence of microsaccades decreased in response to sleep deprivation and time-on-task. In addition, a novel algorithm for detecting multilevel VA was developed, which estimated performance on the PVT by integrating the novel marker with other eye-related indices. The novel algorithm also tracked changes in intermediate level of VA (specific reaction times in the PVT, i.e. 300–500 ms) during prolonged time-on-task and sleep deprivation, which had not been tracked previously by conventional techniques. The implication of the findings is that this novel algorithm, named “eye-metrical estimation version of the PVT: PVT-E,” can be used to reduce human-error-related accidents caused by vigilance impairment even when its level is intermediate.

Spatio-temporal localisation of attentional orienting to gaze and peripheral cues

2012 ◽  
Vol 1439 ◽  
pp. 44-53 ◽  
Author(s):  
Yoko Nagata ◽  
Sarah J. Bayless ◽  
Travis Mills ◽  
Margot J. Taylor
Keyword(s):  
Attentional Orienting ◽  
Peripheral Cues ◽  
Spatio Temporal
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