Persona:
Mayas Arellano, Julia

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0000-0001-5003-4995
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Mayas Arellano
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Julia
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2018 - 20193
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Autor: Ballesteros Jiménez, Soledad ×

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Mostrando 1 - 3 de 3
  • Miniatura
    Publicación
    Interaction dynamics between grouping principles in touch: phenomenological and psychophysical evidence
    (Springer, 2018-05-24) Prieto Lara, Antonio; Mayas Arellano, Julia; Ballesteros Jiménez, Soledad
    In two experiments, we investigated the interactions between the grouping principles of spatial proximity and texture similarity in touch. For that purpose, we adapted to touch two paradigms widely employed in vision. In Experiment 1, we used an experimental phenomenological task consisting of rating the strength of grouping in both acting alone and conjoined cooperative and competitive conditions. In Experiment 2, participants performed a psychophysical task in which an objective (in)correct response was defined by selectively attending to one grouping cue in different blocks of trials. The results showed that spatial proximity dominated over texture similarity when the two principles were conjoined in competition. In addition, the present results are compatible with an additive model of grouping effects as indicated by the greater grouping effect in the cooperative condition and the smaller grouping effect in the competitive condition relative to a.0cting alone grouping principles. The similarities and differences between vision and touch are discussed.
  • Miniatura
    Publicación
    Behavioral and electrophysiological correlates of interactions between grouping principles in touch: Evidence from psychophysical indirect tasks
    (Elsevier, 2019-06-01) Prieto Lara, Antonio; Mayas Arellano, Julia; Ballesteros Jiménez, Soledad
    In two experiments we investigated the behavioral and brain correlates of the interactions between spatial-proximity and texture-similarity grouping principles in touch. We designed two adaptations of the repetition discrimination task (RDT) previously used in vision. This task provides an indirect measure of grouping that does not require explicit attention to the grouping process. In Experiment 1, participants were presented with a row of elements alternating in texture except for one pair in which the same texture was repeated. The participants had to decide whether the repeated texture stimuli (similarity grouping) were smooth or rough, while the spatial proximity between targets and distractors was varied either to facilitate or hinder the response. In Experiment 2, participants indicated which cohort (proximity grouping) contained more elements, while texture-similarity within and between cohorts was modified. The results indicated additive effects of grouping cues in which proximity dominated the perceptual grouping process when the two principles acted together. In addition, the independent component analysis (ICA) performed on electrophysiological data revealed the implication of a widespread network of sensorimotor, prefrontal, parietal and occipital brain areas in both experiments.
  • Miniatura
    Publicación
    Effects of Nonaction Videogames on Attention and Memory in Young Adults
    (Mary Ann Liebert, Inc., 2019-11-26) Eloisa Ruiz-Márquez; Prieto Lara, Antonio; Mayas Arellano, Julia; Toril Barrera, Pilar; Reales Avilés, José Manuel; Ballesteros Jiménez, Soledad
    Objective: In this intervention study, we investigated the benefits of nonaction videogames on measures of selective attention and visuospatial working memory (WM) in young adults. Materials and Methods: Forty-eight young adults were randomly assigned to the experimental group or to the active control group. The experimental group played 10 nonaction adaptive videogames selected from Lumosity, whereas the active control group played two nonadaptive simulation-strategy games (SimCity and The Sims). Participants in both groups completed 15 training sessions of 30 minutes each. The training was conducted in small groups. All the participants were tested individually before and after training to assess possible transfer effects to selective attention, using a Cross-modal Oddball task, inhibition with the Stroop task, and visuospatial WM enhancements with the Corsi blocks task. Results: Participants improved videogame performance across the training sessions. The results of the transfer tasks show that the two groups benefited similarly from game training. They were less distracted and improved visuospatial WM. Conclusion: Overall, there was no significant interaction between group (group trained with adaptive nonaction videogames and the active control group that played simulation games) and session (pre- and post-assessment). As we did not have a passive nonintervention control group, we cannot conclude that adaptive nonaction videogames had a positive effect, because some external factors might account for the pre- and post-test improvements observed in both groups.