Asymmetrical distractibility of global and focal visuospatial
                        attention during segmental and total compound line bisections.

Mosquera, Diana M.; Lamb, Damon G.; Garcia, Amanda; Rodríguez, J.A. Virseda; Correa, Lauren N.; Salazar, Liliana; Schwartz, Zared J.; Cohen, Ronald A.; Falchook, Aaron D.; Heilman, Kenneth M.

doi:10.1037/neu0000455

Cited by 1 publication

(6 citation statements)

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“…In addition, in the focal condition participants are instructed to bisect only the one segment of the compound line. In this condition, when allocating focal attention to the longer segment, healthy middle-aged participants are more distracted when the longer segment is presented on the right and the smaller segment is on the left (Mosquera et al, 2018). This result is consistent with prior studies, which have revealed that, whereas the left hemisphere mediates focal attention, the right hemisphere mediates global attention (Reuter-Lorenz et al, 1990).…”

supporting

confidence: 90%

“…In contrast, in the global condition, both groups of participants were more distracted when the longer segment of this compound was on the left side. Although the exact reason for these effects is not entirely known, these results might be related to the right hemispheric dominance in mediating global attention as well as in allocating attention to the left hemispace (Heilman & Van Den Abell, 1980;Pardo et al, 1991;Mosquera et al, 2018).…”

Section: Discussionmentioning

confidence: 98%

“…Participants performed these tests in a randomized order. The procedure was the same as used in a study by Falchook et al (2015) as well as Mosquera et al (2018).…”

Section: Materials and Proceduresmentioning

confidence: 99%

“…Further, in healthy middle-aged adults this deviation is greater when the longer segment is on the left than on the right side of the line. This asymmetrical global distraction might be related to the right hemisphere's dominance in mediating global attention and allocating attention leftward (Mosquera et al, 2018).…”

mentioning

confidence: 99%

“…To assess differences caused by focal attention, a compound line bisection task may be used. When performing this task, participants are presented with lines that contain two unequal segments, with one that is shorter and wider than another (Falchook et al, 2015;Mosquera et al, 2018;Shuren et al, 1997). To bisect the entire line participants must engage the global aspect of visual attention, so that both segments are attended and perceived as one line.…”

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confidence: 99%

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Leftward Spatial Bias in Dialyzed Patients With End-Stage Renal Disease: A Sign of Right Hemispheric Attentional Activation or Impaired Left-Sided Disengagement?

Mańkowska

Heilman

Biedunkiewicz

et al. 2022

RPsych

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In the horizontal line bisection task, patients with end-stage renal disease (ESRD) treated with dialysis typically have an increase in the normal leftward attentional bias. It is not clear, however, whether this increased bias is related to an increase of attention toward left hemispace or impaired disengagement from left-sided stimuli. Non-demented patients with ESRD who were being treated with dialysis and demographically matched healthy controls attempted to bisect series of horizontal lines composed of two segments of unequal length and width, with the longer segment placed to the right or left. To test for the presence of a global spatial attentional bias, participants attempted to find the middle of the whole line. To test for focal attentional engagement and attentional disengagement, participants were asked to bisect only the longer segment of these compound lines. For the global condition, both patients and healthy controls were biased toward the longer segment and more so to the left. In the focal condition, when the longer segment was on the right side, both groups deviated their bisections toward the shorter segment. However, when in the focal condition the longer segment was on the left healthy controls deviated their bisection significantly more rightwards than did the patients, whereas with the longer segment on the right, the patients and healthy controls did not differ in their bias. These results suggest that the previously recognized dysfunction of the right fronto-subcortical attentional network in dialyzed patients might account for the results of the current study.

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confidence: 90%

Section: Discussionmentioning

confidence: 98%

“…Participants performed these tests in a randomized order. The procedure was the same as used in a study by Falchook et al (2015) as well as Mosquera et al (2018).…”

Section: Materials and Proceduresmentioning

confidence: 99%

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confidence: 99%

mentioning

confidence: 99%

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