Repetition-priming effect: A cognitive task for the definitionof a clinical assessment

Silvia Pagani, Michela Balconi, Matteo Sozzi, Stefania Bianchi-Marzoli, Lisa Melzi, Massimo Corbo

Research output: Contribution to journalArticle

Abstract

This research aims to study how semantic priming words can influence behavioral measures (RTs, accuracy), to develop an experimental paradigm to differentiate visual neglect and hemianopia. 69 experimental subjects were involved in four experiments. In each experiment target words were preceded by word primes semantically related, neutral or unrelated to the target. The four experiments differed in terms of: number of prime, prime duration and distance between PC monitor and subject. In general, related primes should improve facilitatory effect in target recognition more than unrelated primes, reducing RTs and increasing response accuracy. After repeated ANOVA analysis applied to each experiment and paired comparisons, it is possible to point out that single related primes, shown for 150 ms, greatly improve response behavior in terms of RTs reduction. For future applications to the clinical field, we assume that neglect patients should be facilitated in these specific experimental conditions, due to implicit contralesional prime processing. On the contrary, hemianopics should nowise be facilitated, due to visual field deficit.

Original languageEnglish
Pages (from-to)41-46
Number of pages6
JournalNeuropsychological Trends
Volume15
Issue number2014
DOIs
Publication statusPublished - 2014

Keywords

  • Hemianopia
  • Implicit perception
  • Neglect
  • Rts
  • Semantic priming

ASJC Scopus subject areas

  • Cellular and Molecular Neuroscience
  • Neuropsychology and Physiological Psychology

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