Measuring attention in the hemispheres: The lateralized attention network test (LANT)

Deanna J. Greene, Anat Barnea, Kristin Herzberg, Anat Rassis, Maital Neta, Amir Raz, Eran Zaidel

Research output: Contribution to journalArticle

55 Scopus citations

Abstract

The attention network test (ANT) is a brief computerized battery measuring three independent behavioral components of attention: Conflict resolution (ability to overcome distracting stimuli), spatial Orienting (the benefit of valid spatial pre-cues), and Alerting (the benefit of temporal pre-cues). Imaging, clinical, and behavioral evidence demonstrate hemispheric asymmetries in these attentional networks. We constructed a lateralized version of the ANT (LANT), with brief targets flashed in one or the other visual hemifield. We also modified the tests by including invalid spatial cues in order to measure the cost component of Orienting. In a series of experiments, we investigated the efficiency of the attention networks separately in each hemisphere. Participants exhibited significant estimates of all networks measured by the LANT, comparable to the ANT. The three networks were represented in each hemisphere separately and were largely comparable across the two hemispheres. We suggest that the LANT is an informative extension of the original ANT, allowing for measurement of the three attention networks in each hemisphere separately.

Original languageEnglish (US)
Pages (from-to)21-31
Number of pages11
JournalBrain and Cognition
Volume66
Issue number1
DOIs
StatePublished - Feb 2008

Keywords

  • Attention
  • Conflict
  • Executive
  • Hemispheric independence
  • Hemispheric specialization
  • Orienting
  • Vigilance

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Experimental and Cognitive Psychology
  • Developmental and Educational Psychology
  • Arts and Humanities (miscellaneous)
  • Cognitive Neuroscience

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