Repetition-priming effect: a cognitive task for the definition of a clinical assessment

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

Risultato della ricerca: Contributo in rivistaArticolo in rivistapeer review


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.
Lingua originaleEnglish
pagine (da-a)41-46
Numero di pagine6
RivistaNeuropsychological Trends
Stato di pubblicazionePubblicato - 2014


  • Hemianopia
  • Implicit perception
  • Neglect
  • RTs
  • Semantic priming


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