List of all CoLab Publications
2023
Giuliani, Felice; Brunello, Loris; Dalmaso, Mario; D’Anselmo, Anita; Tommasi, Luca; Vicovaro, Michele
The right side of price: Evidence of a SNARC-like effect for economic value Journal Article Forthcoming
In: Current Psychology, Forthcoming.
@article{Dalmaso2023h,
title = {The right side of price: Evidence of a SNARC-like effect for economic value},
author = {Felice Giuliani and Loris Brunello and Mario Dalmaso and Anita D’Anselmo and Luca Tommasi and Michele Vicovaro},
year = {2023},
date = {2023-11-28},
urldate = {2023-11-28},
journal = {Current Psychology},
keywords = {},
pubstate = {forthcoming},
tppubtype = {article}
}
Dalmaso, Mario; Pileggi, Stefano; Vicovaro, Michele
Face age is mapped into three-dimensional space Journal Article
In: Cognitive Science, vol. 47, iss. 11, no. e13374, 2023.
@article{Dalmaso2023g,
title = {Face age is mapped into three-dimensional space},
author = {Mario Dalmaso and Stefano Pileggi and Michele Vicovaro},
url = {http://colab.psy.unipd.it/wp-content/uploads/2023/11/Cognitive-Science-2023-Dalmaso-Face-Age-is-Mapped-Into-Three‐Dimensional-Space-1.pdf},
doi = {10.1111/cogs.13374},
year = {2023},
date = {2023-11-11},
urldate = {2023-11-11},
journal = {Cognitive Science},
volume = {47},
number = {e13374},
issue = {11},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Dalmaso, Mario; Galfano, Giovanni; Castelli, Luigi
Testing the effects of gaze distractors with invariant spatial direction on attention cueing Journal Article Forthcoming
In: Quarterly Journal of Experimental Psychology, Forthcoming.
@article{Dalmaso2023f,
title = {Testing the effects of gaze distractors with invariant spatial direction on attention cueing},
author = {Mario Dalmaso and Giovanni Galfano and Luigi Castelli },
url = {http://colab.psy.unipd.it/wp-content/uploads/2023/10/dalmaso-et-al-2023-testing-the-effects-of-gaze-distractors-with-invariant-spatial-direction-on-attention-cueing.pdf},
doi = {10.1177/17470218231203963},
year = {2023},
date = {2023-10-31},
urldate = {2023-10-31},
journal = {Quarterly Journal of Experimental Psychology},
keywords = {},
pubstate = {forthcoming},
tppubtype = {article}
}
Dell'Acqua, Roberto; Sessa, Paola; Sabrina, Brigadoi
Nulla si crea, nulla si distrugge, tutto si trasforma Journal Article
In: Giornale Italiano di Psicologia, vol. 3, pp. 597-601, 2023.
@article{nokey,
title = {Nulla si crea, nulla si distrugge, tutto si trasforma},
author = {Roberto Dell'Acqua and Paola Sessa and Brigadoi Sabrina},
url = {http://colab.psy.unipd.it/wp-content/uploads/2023/11/gip_turatto_23.pdf},
doi = {10.1421/108223},
year = {2023},
date = {2023-10-15},
urldate = {2023-10-15},
journal = {Giornale Italiano di Psicologia},
volume = {3},
pages = {597-601},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Dalmaso, Mario; Galfano, Giovanni; Castelli, Luigi
Are eyes special? Gaze, but not pointing gestures, elicits a reversed congruency effect in a spatial Stroop task Journal Article
In: Attention, Perception, & Psychophysics, vol. 85, pp. 2547–2552, 2023.
@article{Zhang2023b,
title = {Are eyes special? Gaze, but not pointing gestures, elicits a reversed congruency effect in a spatial Stroop task},
author = {Mario Dalmaso and Giovanni Galfano and Luigi Castelli },
url = {http://colab.psy.unipd.it/wp-content/uploads/2023/10/s13414-023-02774-6.pdf},
doi = {10.3758/s13414-023-02774-6},
year = {2023},
date = {2023-09-14},
urldate = {2023-09-14},
journal = {Attention, Perception, & Psychophysics},
volume = {85},
pages = {2547–2552},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Dalmaso, Mario
Foot cues can elicit covert orienting of attention Journal Article
In: Psychological Research, vol. 87, pp. 2440–244, 2023.
@article{Dalmaso2023d,
title = {Foot cues can elicit covert orienting of attention},
author = {Mario Dalmaso},
url = {http://colab.psy.unipd.it/wp-content/uploads/2023/04/s00426-023-01827-7.pdf},
doi = {10.1007/s00426-023-01827-7},
year = {2023},
date = {2023-09-13},
urldate = {2023-07-31},
journal = {Psychological Research},
volume = { 87},
pages = {2440–244},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Dalmaso, Mario; Fedrigo, Giacomo; Vicovaro, Michele
Gazing left, gazing right: Exploring a spatial bias in social attention Journal Article
In: PeerJ, vol. 11, no. e15694, 2023.
@article{Dalmaso2023e,
title = {Gazing left, gazing right: Exploring a spatial bias in social attention},
author = {Mario Dalmaso and Giacomo Fedrigo and Michele Vicovaro},
url = {http://colab.psy.unipd.it/wp-content/uploads/2023/07/peerj-15694.pdf},
doi = {10.7717/peerj.15694},
year = {2023},
date = {2023-07-12},
urldate = {2023-06-14},
journal = {PeerJ},
volume = {11},
number = {e15694},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Lorenzoni, Anna; Calignano, Giulia; Dalmaso, Mario; Navarrete, Eduardo
Linguistic identity as a modulator of gaze cueing of attention Journal Article
In: Scientific Reports, vol. 13, no. 10829, 2023.
@article{Lorenzoni2023,
title = {Linguistic identity as a modulator of gaze cueing of attention},
author = {Anna Lorenzoni and Giulia Calignano and Mario Dalmaso and Eduardo Navarrete},
url = {http://colab.psy.unipd.it/wp-content/uploads/2023/07/s41598-023-37875-7.pdf},
doi = {https://doi.org/10.1038/s41598-023-37875-7},
year = {2023},
date = {2023-07-04},
urldate = {2023-07-04},
journal = {Scientific Reports},
volume = {13},
number = {10829},
abstract = {Eye-gaze stimuli can elicit orienting of attention in an observer, a phenomenon known as gaze cueing of attention. Here, we explored whether gaze cueing can be shaped by the linguistic identity of the cueing face. In two experiments, participants were first familiarized with different faces together with auditory sentences. Half of the sentences were associated with the native language of the participants (Italian) and the other half with an unknown language (Albanian and Basque, in Experiments 1 and 2, respectively). In a second phase, participants performed a gaze-cueing task. In a third recognition phase, the auditory sentences were presented again, and participants were required to decide which face uttered each sentence. Results indicated that participants were more likely to confuse faces from the same language category than from the other language category. Results of the gaze-cueing task revealed a greater gaze-cueing effect for faces associated with the native vs. unknown language. Critically, this difference emerged only in Experiment 1, which may reflect differences in social status between the two language groups. Our findings revealed the impact of language as a social cue on the gaze-cueing effect, suggesting that social attention is sensitive to the language of our interlocutors.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Eye-gaze stimuli can elicit orienting of attention in an observer, a phenomenon known as gaze cueing of attention. Here, we explored whether gaze cueing can be shaped by the linguistic identity of the cueing face. In two experiments, participants were first familiarized with different faces together with auditory sentences. Half of the sentences were associated with the native language of the participants (Italian) and the other half with an unknown language (Albanian and Basque, in Experiments 1 and 2, respectively). In a second phase, participants performed a gaze-cueing task. In a third recognition phase, the auditory sentences were presented again, and participants were required to decide which face uttered each sentence. Results indicated that participants were more likely to confuse faces from the same language category than from the other language category. Results of the gaze-cueing task revealed a greater gaze-cueing effect for faces associated with the native vs. unknown language. Critically, this difference emerged only in Experiment 1, which may reflect differences in social status between the two language groups. Our findings revealed the impact of language as a social cue on the gaze-cueing effect, suggesting that social attention is sensitive to the language of our interlocutors.
Dalmaso, Mario; Vicovaro, Michele; Watanabe, Katsumi
Cross-cultural evidence of a space-ethnicity association in face categorisation Journal Article
In: Current Psychology, vol. 42, pp. 15883–15892, 2023.
@article{Dalmaso2023b,
title = {Cross-cultural evidence of a space-ethnicity association in face categorisation},
author = {Mario Dalmaso and Michele Vicovaro and Katsumi Watanabe},
url = {http://colab.psy.unipd.it/wp-content/uploads/2023/06/s12144-022-02920-7-1.pdf},
doi = {10.1007/s12144-022-02920-7},
year = {2023},
date = {2023-06-28},
urldate = {2023-01-01},
journal = {Current Psychology},
volume = {42},
pages = {15883–15892},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Peressotti, Francesca; Lorenzoni, Anna; Miozzo, Michele
Moral judgments in native, regional, and foreign languages Journal Article
In: Bilingualism: Language and Cognition, pp. 1–10, 2023.
@article{peressotti2022moral,
title = {Moral judgments in native, regional, and foreign languages},
author = { Francesca Peressotti and Anna Lorenzoni and Michele Miozzo},
url = {https://www.cambridge.org/core/journals/bilingualism-language-and-cognition/article/moral-judgments-in-native-regional-and-foreign-languages/862AEAEFA2D2443B6943CD90D8E843A4},
doi = {https://doi.org/10.1017/S1366728923000342 },
year = {2023},
date = {2023-06-02},
urldate = {2022-01-01},
journal = {Bilingualism: Language and Cognition},
pages = {1--10},
publisher = {Cambridge University Press},
abstract = {We examined moral judgments in three types of language: a native national language (Italian), a non-native foreign language (English), and a native regional language (Venetian, oral and colloquial). We used the Moral Foundation Questionnaire to investigate cross-linguistic differences in multiple aspects of morality. Higher scores in the Harm, Purity and Fairness dimensions were obtained in the foreign and the regional language with respect to the national language. In addition, higher scores in the Ingroup dimension were obtained in the foreign language with respect to the native language. The effects of language on morality can thus be quite pervasive, involving a variety of aspects of morality. The differences we observed across these languages are explained in terms of their sociolinguistics – specifically, the greater use of national languages with moral values and beliefs. It is proposed that language effects arise because the language that is used activates information associated with it.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
We examined moral judgments in three types of language: a native national language (Italian), a non-native foreign language (English), and a native regional language (Venetian, oral and colloquial). We used the Moral Foundation Questionnaire to investigate cross-linguistic differences in multiple aspects of morality. Higher scores in the Harm, Purity and Fairness dimensions were obtained in the foreign and the regional language with respect to the national language. In addition, higher scores in the Ingroup dimension were obtained in the foreign language with respect to the native language. The effects of language on morality can thus be quite pervasive, involving a variety of aspects of morality. The differences we observed across these languages are explained in terms of their sociolinguistics – specifically, the greater use of national languages with moral values and beliefs. It is proposed that language effects arise because the language that is used activates information associated with it.
Gastaldon, S.; Busan, P.; Arcara, G.; Peressotti, F.
Inefficient speech-motor control affects predictive speech comprehension: atypical electrophysiological correlates in stuttering Journal Article
In: Cerebral Cortex, 2023.
@article{Gastaldon2023,
title = {Inefficient speech-motor control affects predictive speech comprehension: atypical electrophysiological correlates in stuttering},
author = {S. Gastaldon and P. Busan and G. Arcara and F. Peressotti},
doi = {10.1093/cercor/bhad004},
year = {2023},
date = {2023-01-21},
urldate = {2023-01-21},
journal = {Cerebral Cortex},
abstract = {Listeners predict upcoming information during language comprehension. However, how this ability is implemented is still largely unknown. Here, we tested the hypothesis proposing that language production mechanisms have a role in prediction. We studied 2 electroencephalographic correlates of predictability during speech comprehension—pre-target alpha–beta (8–30 Hz) power decrease and the post-target N400 event-related potential effect—in a population with impaired speech-motor control, i.e. adults who stutter (AWS), compared to typically fluent adults (TFA). Participants listened to sentences that could either constrain towards a target word or not, modulating its predictability. As a complementary task, participants also performed context-driven word production. Compared to TFA, AWS not only displayed atypical neural responses in production, but, critically, they showed a different pattern also in comprehension. Specifically, while TFA showed the expected pre-target power decrease, AWS showed a power increase in frontal regions, associated with speech-motor control. In addition, the post-target N400 effect was reduced for AWS with respect to TFA. Finally, we found that production and comprehension power changes were positively correlated in TFA, but not in AWS. Overall, the results support the idea that processes and neural structures prominently devoted to speech planning also support prediction during speech comprehension.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Listeners predict upcoming information during language comprehension. However, how this ability is implemented is still largely unknown. Here, we tested the hypothesis proposing that language production mechanisms have a role in prediction. We studied 2 electroencephalographic correlates of predictability during speech comprehension—pre-target alpha–beta (8–30 Hz) power decrease and the post-target N400 event-related potential effect—in a population with impaired speech-motor control, i.e. adults who stutter (AWS), compared to typically fluent adults (TFA). Participants listened to sentences that could either constrain towards a target word or not, modulating its predictability. As a complementary task, participants also performed context-driven word production. Compared to TFA, AWS not only displayed atypical neural responses in production, but, critically, they showed a different pattern also in comprehension. Specifically, while TFA showed the expected pre-target power decrease, AWS showed a power increase in frontal regions, associated with speech-motor control. In addition, the post-target N400 effect was reduced for AWS with respect to TFA. Finally, we found that production and comprehension power changes were positively correlated in TFA, but not in AWS. Overall, the results support the idea that processes and neural structures prominently devoted to speech planning also support prediction during speech comprehension.
Lago, S.; Pezzetta, R.; Gastaldon, S.; Peressotti, F.; Arcara, G.
Trial-by-trial fluctuations of prestimulus alpha power predict post-stimulus amplitude of language ERPs Journal Article
In: PsyArXiv, 2023.
@article{Lago2023,
title = {Trial-by-trial fluctuations of prestimulus alpha power predict post-stimulus amplitude of language ERPs},
author = {S. Lago and R. Pezzetta and S. Gastaldon and F. Peressotti and G. Arcara},
doi = {10.31234/OSF.IO/F96A4},
year = {2023},
date = {2023-01-10},
journal = {PsyArXiv},
abstract = {Anticipatory mechanisms are known to play a key role in language, but they have been mostly investigated with violation paradigms, which only consider what happens after predictions have been (dis)confirmed. Relatively few studies focused on the prestimulus interval and found that stronger expectations are associated with lower prestimulus alpha power. However, alpha power also fluctuates spontaneously, in absence of experimental manipulations; and in the attention and perception domains, spontaneously low prestimulus power is associated with better behavioral performance and with ERPs with shorter latencies and higher amplitudes Importantly, little is known about the role of alpha fluctuations in other domains, as it is in language. To this aim, we investigated whether spontaneous fluctuations in prestimulus alpha power modulate language-related ERPs in a semantic congruence task. EEG data were analyzed using Generalized Additive Mixed Models to model non-linear interactions between prestimulus alpha power and EEG amplitude, at the single-trial level. We found that the N400 and the late posterior positivity/P600 were larger in the case of lower prestimulus alpha power. Still, while the N400 was observable regardless of the level of prestimulus power, a late posterior positivity/P600 effect was only observable for low prestimulus alpha power. We discuss these findings in light of the different, albeit connected, functional interpretations of prestimulus alpha and the ERPs according to both a non-predictive interpretation focused on attentional mechanisms and under a predictive processing framework.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Anticipatory mechanisms are known to play a key role in language, but they have been mostly investigated with violation paradigms, which only consider what happens after predictions have been (dis)confirmed. Relatively few studies focused on the prestimulus interval and found that stronger expectations are associated with lower prestimulus alpha power. However, alpha power also fluctuates spontaneously, in absence of experimental manipulations; and in the attention and perception domains, spontaneously low prestimulus power is associated with better behavioral performance and with ERPs with shorter latencies and higher amplitudes Importantly, little is known about the role of alpha fluctuations in other domains, as it is in language. To this aim, we investigated whether spontaneous fluctuations in prestimulus alpha power modulate language-related ERPs in a semantic congruence task. EEG data were analyzed using Generalized Additive Mixed Models to model non-linear interactions between prestimulus alpha power and EEG amplitude, at the single-trial level. We found that the N400 and the late posterior positivity/P600 were larger in the case of lower prestimulus alpha power. Still, while the N400 was observable regardless of the level of prestimulus power, a late posterior positivity/P600 effect was only observable for low prestimulus alpha power. We discuss these findings in light of the different, albeit connected, functional interpretations of prestimulus alpha and the ERPs according to both a non-predictive interpretation focused on attentional mechanisms and under a predictive processing framework.
Dalmaso, Mario; Schnapper, Youval; Vicovaro, Michele
When time stands upright: STEARC effects along the vertical axis Journal Article
In: Psychological Research, vol. 87, pp. 894–918 , 2023.
@article{Dalmaso2023c,
title = {When time stands upright: STEARC effects along the vertical axis},
author = {Mario Dalmaso and Youval Schnapper and Michele Vicovaro},
url = {http://colab.psy.unipd.it/wp-content/uploads/2023/03/s00426-022-01693-9.pdf},
doi = {10.1007/s00426-022-01693-9},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
journal = {Psychological Research},
volume = {87},
pages = {894–918 },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Dalmaso, Mario; Castelli, Luigi; Bernardini, Chiara; Galfano, Giovanni
Can masked gaze and arrow stimuli elicit overt orienting of attention? A registered report Journal Article
In: Consciousness and Cognition, vol. 109, no. 103476, 2023.
@article{Dalmaso2023,
title = {Can masked gaze and arrow stimuli elicit overt orienting of attention? A registered report},
author = {Mario Dalmaso and Luigi Castelli and Chiara Bernardini and Giovanni Galfano},
url = {http://colab.psy.unipd.it/wp-content/uploads/2023/02/1-s2.0-S1053810023000132-main.pdf},
doi = {10.1016/j.concog.2023.103476},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
journal = {Consciousness and Cognition},
volume = {109},
number = {103476},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Zhang, Xinyuan; Dalmaso, Mario; Galfano, Giovanni; Castelli, Luigi
Tuning social modulations of gaze cueing via contextual factors Journal Article
In: Psychonomic Bulletin & Review, vol. 30, pp. 1004–1010 , 2023.
@article{Zhang2023,
title = {Tuning social modulations of gaze cueing via contextual factors},
author = {Xinyuan Zhang and Mario Dalmaso and Giovanni Galfano and Luigi Castelli },
url = {http://colab.psy.unipd.it/wp-content/uploads/2023/06/s13423-022-02211-z.pdf},
doi = {10.3758/s13423-022-02211-z},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
journal = {Psychonomic Bulletin & Review},
volume = {30},
pages = {1004–1010 },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Canale, Natale; Pancani, Luca; Pivetta, Erika; Moretta, Tania; Marino, Claudia; Buodo, Giulia; Vieno, Alessio; Dalmaso, Mario; Billieux, Joël
Heterogeneity of smartphone impact on everyday life and its relationship with personality and psychopathology: A latent profile analysis Journal Article
In: Comprehensive Psychiatry, vol. 120, pp. 152356, 2023.
@article{nokey,
title = {Heterogeneity of smartphone impact on everyday life and its relationship with personality and psychopathology: A latent profile analysis},
author = {Natale Canale and Luca Pancani and Erika Pivetta and Tania Moretta and Claudia Marino and Giulia Buodo and Alessio Vieno and Mario Dalmaso and Joël Billieux},
url = {http://colab.psy.unipd.it/wp-content/uploads/2022/11/1-s2.0-S0010440X22000621-main.pdf},
doi = {10.1016/j.comppsych.2022.152356},
year = {2023},
date = {2023-01-01},
urldate = {2023-11-01},
journal = {Comprehensive Psychiatry},
volume = {120},
pages = {152356},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2022
Dalmaso, Mario
Exploring the Social Environment with the Eyes: A Review of the Impact of Facial Stimuli on Saccadic Trajectories Journal Article
In: International Journal of Environmental Research and Public Health , vol. 19, iss. 24, no. 16615, 2022.
@article{Dalmaso2022,
title = {Exploring the Social Environment with the Eyes: A Review of the Impact of Facial Stimuli on Saccadic Trajectories},
author = {Mario Dalmaso},
url = {http://colab.psy.unipd.it/wp-content/uploads/2022/12/ijerph-19-16615.pdf},
doi = {10.3390/ijerph192416615},
year = {2022},
date = {2022-12-12},
urldate = {2022-12-12},
journal = {International Journal of Environmental Research and Public Health },
volume = {19},
number = {16615},
issue = {24},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Balters, S; Schlichting, M; Foland-Ross, L; Brigadoi, S; Miller, J G; Kochenderfer, M J; Garrett, A S; Reiss, A L
Towards Assessing Subcortical “Deep Brain” Biomarkers of PTSD with Functional Near-Infrared Spectroscopy Journal Article Forthcoming
In: Cerebral Cortex, Forthcoming.
@article{balters2022towards,
title = {Towards Assessing Subcortical “Deep Brain” Biomarkers of PTSD with Functional Near-Infrared Spectroscopy},
author = { S Balters and M Schlichting and L Foland-Ross and S Brigadoi and J G Miller and M J Kochenderfer and A S Garrett and A L Reiss},
year = {2022},
date = {2022-09-05},
urldate = {2022-09-05},
journal = {Cerebral Cortex},
publisher = {Cold Spring Harbor Laboratory Press},
keywords = {},
pubstate = {forthcoming},
tppubtype = {article}
}
Ayaz, H; Baker, W B; Blaney, G; Boas, D A; Bortfeld, H; Brady, K; Brake, J; Brigadoi, S; Buckley, E M; Carp, S A; others,
Optical imaging and spectroscopy for the study of the human brain: status report Journal Article
In: Neurophotonics, vol. 9, no. S2, pp. S24001, 2022.
@article{ayaz2022optical,
title = {Optical imaging and spectroscopy for the study of the human brain: status report},
author = { H Ayaz and W B Baker and G Blaney and D A Boas and H Bortfeld and K Brady and J Brake and S Brigadoi and E M Buckley and S A Carp and others},
url = {http://colab.psy.unipd.it/wp-content/uploads/2022/09/Ayaz-Optical-imaging-and-spectroscopy-for-the-study-of-the-human-brain-status-report.pdf},
doi = {10.1117/1.NPh.9.S2.S24001},
year = {2022},
date = {2022-09-01},
urldate = {2022-01-01},
journal = {Neurophotonics},
volume = {9},
number = {S2},
pages = {S24001},
publisher = {SPIE},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Dell’Acqua, R; Doro, M; Brigadoi, S; Drisdelle, B L; Simal, A; Baro, V; Jolicœur, P
On target selection as reflected by posterior ERP components in feature-guided visual search Journal Article
In: Psychophysiology, vol. 59, pp. e14131, 2022.
@article{dellacqua,
title = { On target selection as reflected by posterior ERP components in feature-guided visual search},
author = { R Dell’Acqua and M Doro and S Brigadoi and B L Drisdelle and A Simal and V Baro and P Jolicœur},
url = {http://colab.psy.unipd.it/wp-content/uploads/2022/11/pphys_ppp_22-1.pdf},
doi = {10.1111/psyp.14131},
year = {2022},
date = {2022-06-10},
urldate = {2022-06-10},
journal = {Psychophysiology},
volume = {59},
pages = {e14131},
abstract = {The N2pc event-related potential is a widely studied component that reflects the covert deployment of visuo-spatial attention to target stimuli displayed laterally relative to fixation. Recently, an analogous component, named N2pcb, has been proposed as a marker of the deployment of visuo-spatial attention to targets displayed on the vertical midline. Two studies that investigated the N2pcb component found analogous results, using however two different algorithms to compute the amplitude of N2pcb. One study subtracted the ipsilateral activity elicited by a lateral target from the bilateral activity elicited by a target displayed on the vertical midline, whereas the other study subtracted the bilateral activity elicited by target-absent displays from the bilateral activity elicited by a target displayed on the vertical midline. Here we show both algorithms estimate properly the N2pc as well as the N2pcb components. In addition, we explored whether the singleton detection positivity (SDP) component, a posterior bilateral positivity temporally concomitant to N2pc recently reported in studies using singleton search, could be observed in the present study in which a target was defined by a combination of features. Given that such component was indeed found using feature search, we named this component posterior processing positivity (PPP), and showed that bilateral activity elicited by target-absent displays is an adequate baseline for its correct isolation.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The N2pc event-related potential is a widely studied component that reflects the covert deployment of visuo-spatial attention to target stimuli displayed laterally relative to fixation. Recently, an analogous component, named N2pcb, has been proposed as a marker of the deployment of visuo-spatial attention to targets displayed on the vertical midline. Two studies that investigated the N2pcb component found analogous results, using however two different algorithms to compute the amplitude of N2pcb. One study subtracted the ipsilateral activity elicited by a lateral target from the bilateral activity elicited by a target displayed on the vertical midline, whereas the other study subtracted the bilateral activity elicited by target-absent displays from the bilateral activity elicited by a target displayed on the vertical midline. Here we show both algorithms estimate properly the N2pc as well as the N2pcb components. In addition, we explored whether the singleton detection positivity (SDP) component, a posterior bilateral positivity temporally concomitant to N2pc recently reported in studies using singleton search, could be observed in the present study in which a target was defined by a combination of features. Given that such component was indeed found using feature search, we named this component posterior processing positivity (PPP), and showed that bilateral activity elicited by target-absent displays is an adequate baseline for its correct isolation.
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