Pubblicazioni

Autori:

Dolci, Carola; Boehler, C Nico; Santandrea, Elisa; Dewulf, Anneleen; Ben-Hamed, Suliann; Macaluso, Emiliano; Chelazzi, Leonardo; Rashal, Einat

Titolo:

Integrated effects of top-down attention and statistical learning during visual search: an EEG study

Anno:

2023

Tipologia prodotto:

Articolo in Rivista

Tipologia ANVUR:

Articolo su rivista

Lingua:

Inglese

Formato:

A Stampa

Referee:

Sì

Nome rivista:

ATTENTION, PERCEPTION & PSYCHOPHYSICS

ISSN Rivista:

1943-3921

N° Volume:

85

Numero o Fascicolo:

6

Intervallo pagine:

1819-1833

Parole chiave:

Attention control; Endogenous cueing; N2pc; P1; Priority map; Statistical learning

Breve descrizione dei contenuti:

The present study aims to investigate how the competition between visual elements is solved by top-down and/or statistical learning (SL) attentional control (AC) mechanisms when active together. We hypothesized that the "winner" element that will undergo further processing is selected either by one AC mechanism that prevails over the other, or by the joint activity of both mechanisms. To test these hypotheses, we conducted a visual search experiment that combined an endogenous cueing protocol (valid vs. neutral cue) and an imbalance of target frequency distribution across locations (high- vs. low-frequency location). The unique and combined effects of top-down control and SL mechanisms were measured on behaviour and amplitudes of three evoked-response potential (ERP) components (i.e., N2pc, P1, CNV) related to attentional processing. Our behavioural results showed better performance for validly cued targets and for targets in the high-frequency location. The two factors were found to interact, so that SL effects emerged only in the absence of top-down guidance. Whereas the CNV and P1 only displayed a main effect of cueing, for the N2pc we observed an interaction between cueing and SL, revealing a cueing effect for targets in the low-frequency condition, but not in the high-frequency condition. Thus, our data support the view that top-down control and SL work in a conjoint, integrated manner during target selection. In particular, SL mechanisms are reduced or even absent when a fully reliable top-down guidance of attention is at play.

Pagina Web:

https://doi.org/10.3758/s13414-023-02728-y

Id prodotto:

134284

Handle IRIS:

11562/1095932

ultima modifica:

30 novembre 2023

Citazione bibliografica:

Dolci, Carola; Boehler, C Nico; Santandrea, Elisa; Dewulf, Anneleen; Ben-Hamed, Suliann; Macaluso, Emiliano; Chelazzi, Leonardo; Rashal, Einat, Integrated effects of top-down attention and statistical learning during visual search: an EEG study «ATTENTION, PERCEPTION & PSYCHOPHYSICS» , vol. 85 , n. 6 , 2023 , pp. 1819-1833

Consulta la scheda completa presente nel repository istituzionale della Ricerca di Ateneo