The temporal dynamics of visual processing in multiple sclerosis

Silvana Lopes Costa, Oscar F Gonçalves, John DeLuca, Nancy Chiaravalloti, Ramakrishna Chakravarthi, Jorge Almeida

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Although the integrity of the visual system is often affected in multiple sclerosis (MS), the potential relationship between the temporal dynamics of visual processing and performance on neuropsychological tests assessing processing speed (PS) remains relatively unexplored. Here, we test if a PS deficit is related to abnormalities within the visual system, rather than impaired higher-level cognitive function. Two groups of participants with MS (1 group with PS deficits and another without) and a healthy control group, matched for age and education, were included. To explore the temporal dynamics of visual processing, we used 2 psychophysical paradigms: attention enhancement/prioritization and rapid serial visual presentation. Visual PS deficits were associated with a decreased capability to detect visual stimuli and a higher limitation in visual temporal-processing capacity. These results suggest that a latent sensorial temporal limitation of the visual system is significantly associated to PS deficits in MS.

Original languageEnglish
Pages (from-to)133-140
Number of pages8
JournalApplied Neuropsychology. Adult
Volume23
Issue number2
Early online date27 Oct 2015
DOIs
Publication statusPublished - 2016

Fingerprint

Multiple Sclerosis
Neuropsychological Tests
Cognition
Education
Control Groups

Keywords

  • Multiple sclerosis
  • processing speed
  • visual system

Cite this

Lopes Costa, S., Gonçalves, O. F., DeLuca, J., Chiaravalloti, N., Chakravarthi, R., & Almeida, J. (2016). The temporal dynamics of visual processing in multiple sclerosis. Applied Neuropsychology. Adult, 23(2), 133-140. https://doi.org/10.1080/23279095.2015.1020157

The temporal dynamics of visual processing in multiple sclerosis. / Lopes Costa, Silvana; Gonçalves, Oscar F; DeLuca, John; Chiaravalloti, Nancy; Chakravarthi, Ramakrishna; Almeida, Jorge.

In: Applied Neuropsychology. Adult, Vol. 23, No. 2, 2016, p. 133-140.

Research output: Contribution to journalArticle

Lopes Costa, S, Gonçalves, OF, DeLuca, J, Chiaravalloti, N, Chakravarthi, R & Almeida, J 2016, 'The temporal dynamics of visual processing in multiple sclerosis', Applied Neuropsychology. Adult, vol. 23, no. 2, pp. 133-140. https://doi.org/10.1080/23279095.2015.1020157
Lopes Costa, Silvana ; Gonçalves, Oscar F ; DeLuca, John ; Chiaravalloti, Nancy ; Chakravarthi, Ramakrishna ; Almeida, Jorge. / The temporal dynamics of visual processing in multiple sclerosis. In: Applied Neuropsychology. Adult. 2016 ; Vol. 23, No. 2. pp. 133-140.
@article{1a5c83fd15c84a7596d70909d8cda72b,
title = "The temporal dynamics of visual processing in multiple sclerosis",
abstract = "Although the integrity of the visual system is often affected in multiple sclerosis (MS), the potential relationship between the temporal dynamics of visual processing and performance on neuropsychological tests assessing processing speed (PS) remains relatively unexplored. Here, we test if a PS deficit is related to abnormalities within the visual system, rather than impaired higher-level cognitive function. Two groups of participants with MS (1 group with PS deficits and another without) and a healthy control group, matched for age and education, were included. To explore the temporal dynamics of visual processing, we used 2 psychophysical paradigms: attention enhancement/prioritization and rapid serial visual presentation. Visual PS deficits were associated with a decreased capability to detect visual stimuli and a higher limitation in visual temporal-processing capacity. These results suggest that a latent sensorial temporal limitation of the visual system is significantly associated to PS deficits in MS.",
keywords = "Multiple sclerosis, processing speed, visual system",
author = "{Lopes Costa}, Silvana and Gon{\cc}alves, {Oscar F} and John DeLuca and Nancy Chiaravalloti and Ramakrishna Chakravarthi and Jorge Almeida",
note = "Funding This work was supported by the Foundation for Science and Technology of Portugal with a doctoral fellowship grant (No. SFRH/BD/455591/2008) to SLC. JA is supported by funding from the Foundation for Science and Technology of Portugal Project Grants PTDC/PSI-PCO/114822/2009 and PTDC/MHC-PCN/3575/2012.",
year = "2016",
doi = "10.1080/23279095.2015.1020157",
language = "English",
volume = "23",
pages = "133--140",
journal = "Applied Neuropsychology. Adult",
issn = "2327-9095",
publisher = "Taylor & Francis",
number = "2",

}

TY - JOUR

T1 - The temporal dynamics of visual processing in multiple sclerosis

AU - Lopes Costa, Silvana

AU - Gonçalves, Oscar F

AU - DeLuca, John

AU - Chiaravalloti, Nancy

AU - Chakravarthi, Ramakrishna

AU - Almeida, Jorge

N1 - Funding This work was supported by the Foundation for Science and Technology of Portugal with a doctoral fellowship grant (No. SFRH/BD/455591/2008) to SLC. JA is supported by funding from the Foundation for Science and Technology of Portugal Project Grants PTDC/PSI-PCO/114822/2009 and PTDC/MHC-PCN/3575/2012.

PY - 2016

Y1 - 2016

N2 - Although the integrity of the visual system is often affected in multiple sclerosis (MS), the potential relationship between the temporal dynamics of visual processing and performance on neuropsychological tests assessing processing speed (PS) remains relatively unexplored. Here, we test if a PS deficit is related to abnormalities within the visual system, rather than impaired higher-level cognitive function. Two groups of participants with MS (1 group with PS deficits and another without) and a healthy control group, matched for age and education, were included. To explore the temporal dynamics of visual processing, we used 2 psychophysical paradigms: attention enhancement/prioritization and rapid serial visual presentation. Visual PS deficits were associated with a decreased capability to detect visual stimuli and a higher limitation in visual temporal-processing capacity. These results suggest that a latent sensorial temporal limitation of the visual system is significantly associated to PS deficits in MS.

AB - Although the integrity of the visual system is often affected in multiple sclerosis (MS), the potential relationship between the temporal dynamics of visual processing and performance on neuropsychological tests assessing processing speed (PS) remains relatively unexplored. Here, we test if a PS deficit is related to abnormalities within the visual system, rather than impaired higher-level cognitive function. Two groups of participants with MS (1 group with PS deficits and another without) and a healthy control group, matched for age and education, were included. To explore the temporal dynamics of visual processing, we used 2 psychophysical paradigms: attention enhancement/prioritization and rapid serial visual presentation. Visual PS deficits were associated with a decreased capability to detect visual stimuli and a higher limitation in visual temporal-processing capacity. These results suggest that a latent sensorial temporal limitation of the visual system is significantly associated to PS deficits in MS.

KW - Multiple sclerosis

KW - processing speed

KW - visual system

U2 - 10.1080/23279095.2015.1020157

DO - 10.1080/23279095.2015.1020157

M3 - Article

VL - 23

SP - 133

EP - 140

JO - Applied Neuropsychology. Adult

JF - Applied Neuropsychology. Adult

SN - 2327-9095

IS - 2

ER -