Cerebral regions processing first- and higher-order motion in an opposed-direction discrimination task

P. Dupont, G. Sáry, H. Peuskens, G. A. Orban

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Using PET, we studied the processing of different types of motion in an opposed-direction discrimination task. We used first-order motion and two types of higher-order motion (presented as moving gratings with stripes defined by flickering texture and kinetic boundaries, respectively). In these experiments, we found that all types of motion activate a common set of cortical regions when comparing a direction discrimination task to a detection of the dimming of the fixation point. This set includes left hV3A, bilateral hMT/ V5+ and regions in the middle occipital gyrus, bilateral activations in the posterior and anterior parts of the intraparietal sulcus, bilateral precentral gyrus, medial frontal cortex and regions in the cerebellum. No significant differences were observed between different types of motion, even at low statistical thresholds. From this we conclude that, under our experimental conditions, the same cerebral regions are involved in the processing of first-order and higher-order motion in an opposed-direction discrimination task.

Original languageEnglish
Pages (from-to)1509-1517
Number of pages9
JournalEuropean Journal of Neuroscience
Volume17
Issue number7
DOIs
Publication statusPublished - Apr 2003

Fingerprint

Frontal Lobe
Occipital Lobe
Parietal Lobe
Cerebellum
Direction compound

Keywords

  • Attention
  • Functional imaging
  • Human
  • Vision

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Cerebral regions processing first- and higher-order motion in an opposed-direction discrimination task. / Dupont, P.; Sáry, G.; Peuskens, H.; Orban, G. A.

In: European Journal of Neuroscience, Vol. 17, No. 7, 04.2003, p. 1509-1517.

Research output: Contribution to journalArticle

@article{a37481f53ccf43b4a0fdc4b0656aaa6c,
title = "Cerebral regions processing first- and higher-order motion in an opposed-direction discrimination task",
abstract = "Using PET, we studied the processing of different types of motion in an opposed-direction discrimination task. We used first-order motion and two types of higher-order motion (presented as moving gratings with stripes defined by flickering texture and kinetic boundaries, respectively). In these experiments, we found that all types of motion activate a common set of cortical regions when comparing a direction discrimination task to a detection of the dimming of the fixation point. This set includes left hV3A, bilateral hMT/ V5+ and regions in the middle occipital gyrus, bilateral activations in the posterior and anterior parts of the intraparietal sulcus, bilateral precentral gyrus, medial frontal cortex and regions in the cerebellum. No significant differences were observed between different types of motion, even at low statistical thresholds. From this we conclude that, under our experimental conditions, the same cerebral regions are involved in the processing of first-order and higher-order motion in an opposed-direction discrimination task.",
keywords = "Attention, Functional imaging, Human, Vision",
author = "P. Dupont and G. S{\'a}ry and H. Peuskens and Orban, {G. A.}",
year = "2003",
month = "4",
doi = "10.1046/j.1460-9568.2003.02571.x",
language = "English",
volume = "17",
pages = "1509--1517",
journal = "European Journal of Neuroscience",
issn = "0953-816X",
publisher = "Wiley-Blackwell",
number = "7",

}

TY - JOUR

T1 - Cerebral regions processing first- and higher-order motion in an opposed-direction discrimination task

AU - Dupont, P.

AU - Sáry, G.

AU - Peuskens, H.

AU - Orban, G. A.

PY - 2003/4

Y1 - 2003/4

N2 - Using PET, we studied the processing of different types of motion in an opposed-direction discrimination task. We used first-order motion and two types of higher-order motion (presented as moving gratings with stripes defined by flickering texture and kinetic boundaries, respectively). In these experiments, we found that all types of motion activate a common set of cortical regions when comparing a direction discrimination task to a detection of the dimming of the fixation point. This set includes left hV3A, bilateral hMT/ V5+ and regions in the middle occipital gyrus, bilateral activations in the posterior and anterior parts of the intraparietal sulcus, bilateral precentral gyrus, medial frontal cortex and regions in the cerebellum. No significant differences were observed between different types of motion, even at low statistical thresholds. From this we conclude that, under our experimental conditions, the same cerebral regions are involved in the processing of first-order and higher-order motion in an opposed-direction discrimination task.

AB - Using PET, we studied the processing of different types of motion in an opposed-direction discrimination task. We used first-order motion and two types of higher-order motion (presented as moving gratings with stripes defined by flickering texture and kinetic boundaries, respectively). In these experiments, we found that all types of motion activate a common set of cortical regions when comparing a direction discrimination task to a detection of the dimming of the fixation point. This set includes left hV3A, bilateral hMT/ V5+ and regions in the middle occipital gyrus, bilateral activations in the posterior and anterior parts of the intraparietal sulcus, bilateral precentral gyrus, medial frontal cortex and regions in the cerebellum. No significant differences were observed between different types of motion, even at low statistical thresholds. From this we conclude that, under our experimental conditions, the same cerebral regions are involved in the processing of first-order and higher-order motion in an opposed-direction discrimination task.

KW - Attention

KW - Functional imaging

KW - Human

KW - Vision

UR - http://www.scopus.com/inward/record.url?scp=0038367816&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0038367816&partnerID=8YFLogxK

U2 - 10.1046/j.1460-9568.2003.02571.x

DO - 10.1046/j.1460-9568.2003.02571.x

M3 - Article

C2 - 12713654

AN - SCOPUS:0038367816

VL - 17

SP - 1509

EP - 1517

JO - European Journal of Neuroscience

JF - European Journal of Neuroscience

SN - 0953-816X

IS - 7

ER -