Exploring the neural correlates of the reversed letter effect: Evidence from left and right parietal patients

Giuseppa Renata Mangano, Lisa Cipolotti, Patrizia Turriziani, Isabella Giammusso, Daniela Smirni, Li Zhaoping, Martina Bracco, Massimiliano Oliveri

Research output: Contribution to journalArticle

Abstract

To investigate the hemispheric lateralization of attentional processes during visual search tasks depending on the stimulus material embedding the target, twelve patients with unilateral left (n = 7) or right (n = 5) parietal lesions and 20 age and education matched healthy controls (HC) were recruited. We used a visual search task for a uniquely tilted oblique bar embedded in an object shape ‘N’ or in its mirror reversal ‘И’. The accuracy and the averaged reaction times (RTs) in each stimulus type (’N’ or ‘И’) were analysed. HC presented significantly longer RTs when the target bar was embedded in ‘N’ among its mirror reversed ‘И’ (p <.05). This “reversed letter effect” was also found in the right parietal patients (p <.001), while no evidence of a reversed letter effect was found in the left parietal patients.

Original languageEnglish
Pages (from-to)217-224
Number of pages8
JournalNeuroscience Letters
Volume699
DOIs
Publication statusPublished - Apr 23 2019

Fingerprint

Patient Rights
Reaction Time
Education

Keywords

  • Parietal cortex
  • Top-down attention
  • Visual search asymmetries

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Mangano, G. R., Cipolotti, L., Turriziani, P., Giammusso, I., Smirni, D., Zhaoping, L., ... Oliveri, M. (2019). Exploring the neural correlates of the reversed letter effect: Evidence from left and right parietal patients. Neuroscience Letters, 699, 217-224. https://doi.org/10.1016/j.neulet.2019.02.017

Exploring the neural correlates of the reversed letter effect : Evidence from left and right parietal patients. / Mangano, Giuseppa Renata; Cipolotti, Lisa; Turriziani, Patrizia; Giammusso, Isabella; Smirni, Daniela; Zhaoping, Li; Bracco, Martina; Oliveri, Massimiliano.

In: Neuroscience Letters, Vol. 699, 23.04.2019, p. 217-224.

Research output: Contribution to journalArticle

Mangano, GR, Cipolotti, L, Turriziani, P, Giammusso, I, Smirni, D, Zhaoping, L, Bracco, M & Oliveri, M 2019, 'Exploring the neural correlates of the reversed letter effect: Evidence from left and right parietal patients', Neuroscience Letters, vol. 699, pp. 217-224. https://doi.org/10.1016/j.neulet.2019.02.017
Mangano, Giuseppa Renata ; Cipolotti, Lisa ; Turriziani, Patrizia ; Giammusso, Isabella ; Smirni, Daniela ; Zhaoping, Li ; Bracco, Martina ; Oliveri, Massimiliano. / Exploring the neural correlates of the reversed letter effect : Evidence from left and right parietal patients. In: Neuroscience Letters. 2019 ; Vol. 699. pp. 217-224.
@article{5616c150571b45d8b880b5b43e6c8cd1,
title = "Exploring the neural correlates of the reversed letter effect: Evidence from left and right parietal patients",
abstract = "To investigate the hemispheric lateralization of attentional processes during visual search tasks depending on the stimulus material embedding the target, twelve patients with unilateral left (n = 7) or right (n = 5) parietal lesions and 20 age and education matched healthy controls (HC) were recruited. We used a visual search task for a uniquely tilted oblique bar embedded in an object shape ‘N’ or in its mirror reversal ‘И’. The accuracy and the averaged reaction times (RTs) in each stimulus type (’N’ or ‘И’) were analysed. HC presented significantly longer RTs when the target bar was embedded in ‘N’ among its mirror reversed ‘И’ (p <.05). This “reversed letter effect” was also found in the right parietal patients (p <.001), while no evidence of a reversed letter effect was found in the left parietal patients.",
keywords = "Parietal cortex, Top-down attention, Visual search asymmetries",
author = "Mangano, {Giuseppa Renata} and Lisa Cipolotti and Patrizia Turriziani and Isabella Giammusso and Daniela Smirni and Li Zhaoping and Martina Bracco and Massimiliano Oliveri",
year = "2019",
month = "4",
day = "23",
doi = "10.1016/j.neulet.2019.02.017",
language = "English",
volume = "699",
pages = "217--224",
journal = "Neuroscience Letters",
issn = "0304-3940",
publisher = "Elsevier Ireland Ltd",

}

TY - JOUR

T1 - Exploring the neural correlates of the reversed letter effect

T2 - Evidence from left and right parietal patients

AU - Mangano, Giuseppa Renata

AU - Cipolotti, Lisa

AU - Turriziani, Patrizia

AU - Giammusso, Isabella

AU - Smirni, Daniela

AU - Zhaoping, Li

AU - Bracco, Martina

AU - Oliveri, Massimiliano

PY - 2019/4/23

Y1 - 2019/4/23

N2 - To investigate the hemispheric lateralization of attentional processes during visual search tasks depending on the stimulus material embedding the target, twelve patients with unilateral left (n = 7) or right (n = 5) parietal lesions and 20 age and education matched healthy controls (HC) were recruited. We used a visual search task for a uniquely tilted oblique bar embedded in an object shape ‘N’ or in its mirror reversal ‘И’. The accuracy and the averaged reaction times (RTs) in each stimulus type (’N’ or ‘И’) were analysed. HC presented significantly longer RTs when the target bar was embedded in ‘N’ among its mirror reversed ‘И’ (p <.05). This “reversed letter effect” was also found in the right parietal patients (p <.001), while no evidence of a reversed letter effect was found in the left parietal patients.

AB - To investigate the hemispheric lateralization of attentional processes during visual search tasks depending on the stimulus material embedding the target, twelve patients with unilateral left (n = 7) or right (n = 5) parietal lesions and 20 age and education matched healthy controls (HC) were recruited. We used a visual search task for a uniquely tilted oblique bar embedded in an object shape ‘N’ or in its mirror reversal ‘И’. The accuracy and the averaged reaction times (RTs) in each stimulus type (’N’ or ‘И’) were analysed. HC presented significantly longer RTs when the target bar was embedded in ‘N’ among its mirror reversed ‘И’ (p <.05). This “reversed letter effect” was also found in the right parietal patients (p <.001), while no evidence of a reversed letter effect was found in the left parietal patients.

KW - Parietal cortex

KW - Top-down attention

KW - Visual search asymmetries

UR - http://www.scopus.com/inward/record.url?scp=85061987373&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85061987373&partnerID=8YFLogxK

U2 - 10.1016/j.neulet.2019.02.017

DO - 10.1016/j.neulet.2019.02.017

M3 - Article

C2 - 30763653

AN - SCOPUS:85061987373

VL - 699

SP - 217

EP - 224

JO - Neuroscience Letters

JF - Neuroscience Letters

SN - 0304-3940

ER -