30 documents found, page 1 of 3
From Perugino to Picasso revisited: Electrophysiological responses to faces in ...
Ventura, Paulo; Pascual, Mariona; Cruz, F.; Araújo, SusanaBehavioral research (Ventura, et al., 2023) suggested that pictorial representations of faces varying along a realism-distortion spectrum elicit holistic processing as natural faces. Whether holistic face neural responses are engaged similarly remains, however, underexplored. In the present study, we evaluated the neural correlates of naturalist and artistic face processing, by exploring electrophysiological re...
Particle-in-cell simulations of pulsar magnetospheres: Transition between elect...
Cruz, F.; Grismayer, T.; Torres, R.; Chen, A. Y.; Spitkovsky, A.; Fonseca, R. A.; Silva, L. O.Aims. Global particle-in-cell (PIC) simulations of pulsar magnetospheres are performed with volume-, surface-, and pair-production-based plasma injection schemes to systematically investigate the transition between electrosphere and force-free pulsar magnetospheric regimes. Methods. We present a new extension of the PIC code OSIRIS that can be used to model pulsar magnetospheres with a two-dimensional axisymmet...
OSIRIS-GR: General relativistic activation of the polar cap of a compact neutro...
Torres, R; Grismayer, T.; Cruz, F.; Fonseca, R. A.; Silva, L. O.We present ab initio global general-relativistic Particle-in-cell (GR-PIC) simulations of compact millisecond neutron star magnetospheres in the axisymmetric aligned rotator configuration. We investigate the role of GR and plasma supply on the polar cap particle acceleration efficiency – the precursor of coherent radio emission – employing a new module for the PIC code OSIRIS, designed to model plasma dynamics ...
Change detection versus change localization for faces, houses, and words
Ventura, Paulo; Pereira, Alexandre; Cruz, F.; Delgado, João; Faustino, Bruno; Guerreiro, José CarlosThe other-race effect (ORE) is a well-known phenomenon in which people discriminate and recognize faces from their ethnic group more accurately than faces from other ethnic groups. Holistic processing, or the mandatory tendency to process all parts of an object together, has been proposed as an explanation for the ORE. According to the holistic perspective of the ORE, other-race faces might be subject to weaker...
Domain Specificity vs. Domain Generality: The Case of Faces and Words
Ventura, Paulo; Cruz, F.Faces and words are ever-present stimuli in social environments that require fine-grained, efficient discrimination of their constituents in order to acquire meaning. Provided that these stimuli share multiple characteristics, while simultaneously being different visual object categories in important ways, a debate has ensued pertaining to whether their processing can be reduced to a common mechanism or whether...
From Perugino to Picasso: Holistic processing of faces in paintings
Ventura, Paulo; Liu, Tina T.; Cruz, F.; Pereira, Alexandre; Domingues, Miguel; Guerreiro, José Carlos; Delgado, JoãoFaces are generally assumed to be processed holistically, that is, features are represented in an integrated fashion. Similarly, pictorial representations of faces (e.g., drawings) have been shown to elicit holistic processing. Some researchers, however, have contested the concept of holistic face processing, suggesting that the perception of a face is no more than the sum of individual face parts. In the prese...
Do individuation instructions reduce the cross-race effect? A registered replic...
Cruz, F.; Palma, Tomás; Bansemer, Emil; Correll, Joshua; Fonseca, Sara; Gonçalves, Patrícia; Correia dos Santos, Ana SofiaPeople usually have less accurate memory for cross-race (CR) than for same-race (SR) faces, a robust and consequential phenomenon known as the Cross-Race Effect (CRE). In an influential paper, Hugenberg et al. (2007) showed that the CRE can be eliminated when participants are instructed to individuate CR faces in order to avoid displaying this effect. This finding has received widespread attention, and many stu...
Do individuation instructions reduce the cross-race effect? A registered replic...
Cruz, F.; Palma, Tomás; Bansemer, Emil; Correll, Joshua; Fonseca, Sara; Gonçalves, Patrícia; Correia dos Santos, Ana SofiaPeople usually have less accurate memory for cross-race (CR) than for same-race (SR) faces, a robust and consequential phenomenon known as the Cross-Race Effect (CRE). In an influential paper, Hugenberg et al. (2007) showed that the CRE can be eliminated when participants are instructed to individuate CR faces in order to avoid displaying this effect. This finding has received widespread attention, and many stu...
The mechanisms supporting holistic perception of words and faces are not indepe...
Ventura, Paulo; Liu, Tina T.; Cruz, F.; Pereira, AlexandreThe question of whether word and face recognition rely on overlapping or dissociable neural and cognitive mechanisms received considerable attention in the literature. In the present work, we presented words (aligned or misaligned) superimposed on faces (aligned or misaligned) and tested the interference from the unattended stimulus category on holistic processing of the attended category. In Experiment 1, we f...
Of Faces and Words: On Domain-Specific and Domain-General Accounts
Ventura, Paulo; Cruz, F.In 2019, we published a paper in the Journal of Expertise (Ventura et al., 2019) showing that visual words show holistic processing, deemed a characteristic of faces, when the visual stimuli are within the limits of expertise of the Visual Word Form System (Cohen et al., 2008) and thus when there is fast parallel reading. In this commentary, we discuss this evidence considering the perspective of shared process...