
David López PérezIrisbond Crowdbonding SL
David López Pérez
Doctor of Philosophy
Working at Irisbond
About
44
Publications
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Introduction
Additional affiliations
October 2019 - present
September 2015 - September 2019
September 2011 - September 2015
Publications
Publications (44)
Early identification of Neurodevelopmental Disorders (NDD) allows for faster intervention, which in turn improves clinical outcomes and reduces the individual and societal costs associated with the diagnosis. The aims of the study were to 1) investigate the use of the DeepLabCut (DLC) toolbox to automatically analyze the motor patterns of infants a...
From birth, we perceive speech by hearing and seeing people talk. In adults cortical representations of visual speech are processed in the putative temporal visual speech area (TVSA), but it remains unknown how these representations develop. We measured infants’ cortical responses to silent visual syllables and non-communicative mouth movements usi...
In adults, the integration of audiovisual speech elicits specific higher (super-additive) or lower (sub-additive) cortical responses when compared to the responses to unisensory stimuli. Although there is evidence that the fronto-temporal net- work is active during perception of audiovisual speech in infancy, the development of fronto-temporal resp...
We have recently suggested a proposal to explore non-classicality in the brain, for which we developed an entanglement witness protocol using MRI. The witness protocol intended to find spin interactions which could not be explained by classical interactions, based on intermolecular multiple quantum coherence (iMQC). As for Warren’s comments, we sho...
A child’s motor development progresses very dynamically. It is crucial to develop freely available parent-report measures of motor development that can be easily used globally to measure motor skills and identify children in need of interventions. This paper presents the adaptation and validation of the Early Motor Questionnaire, which consists of...
Early in life, infants exhibit motor overflow, which can be defined as the generation of involuntary movements accompanying purposeful actions. We present the results of a quantitative study exploring motor overflow in 4-month-old infants. This is the first study quantifying motor overflow with high accuracy and precision provided by Inertial Motio...
Individuals who have the disposition to identify with all humanity declare feeling close to people all over the world, caring about them, and perceiving them as an ingroup. However, never before were such declarations verified by measures of intergroup attitudes less direct than questionnaires, such as approach/avoidance tendencies or dynamical sys...
The process by which infants move from liquid feeding to caregiver-assisted spoon feeding of semi-solid food is quite a dramatic transition. In previous studies, we observed that in the weeks after the introduction to solid food, mother-infant dyads showed increased co-regulation and synchronization of their respective feeding behaviors (e.g. offer...
The role of parental behaviour in modulating infant learning during experimental studies has been rarely explored. Yet, multiple strands of research suggest that dyadic infant-parent interactions could be as important for infant learning and regulation during experimental studies with infants, as they are during their free, unconstrained play. Rece...
A child's motor development progresses very dynamically. It is crucial to develop freely available parent-report measures of motor development that can be easily used globally to measure motor skills and identify children in need of interventions. Here, we present the adaptation and validation of the Early Motor Questionnaire, which consists of gro...
A child’s motor development progresses very dynamically. It is crucial to develop freely available parent-report measures of motor development that can be easily used globally to measure motor skills and identify children in need of interventions. Here, we present the adaptation and validation of the Early Motor Questionnaire, which consists of gro...
From early on, infants produce a variety of rhythmic behaviors—an ability that likely supports later social communication. However, it is unclear, how this rhythmic motor production changes with age. Here, we investigated the coupling between infants' arm movements across the first year of life in a social context of a rattle-shaking play with thei...
Unlabelled:
Getting older affects both the structure of the brain and some cognitive capabilities. Until now, magnetic resonance imaging (MRI) approaches have been unable to give a coherent reflection of the cognitive declines. It shows the limitation of the contrast mechanisms used in most MRI investigations, which are indirect measures of brain...
Recent proposals in quantum gravity have suggested that unknown systems can mediate entanglement between two known quantum systems, if the mediator itself is non-classical. This approach may be applicable to the brain, where speculations about quantum operations in consciousness and cognition have a long history. Proton spins of bulk water, which m...
Infants' attention to the mouth is thought to support language acquisition, yet this relation has been scantly tested longitudinally. This study assessed attention to the mouth and the eyes at 5.5 (n = 91; Polish, 49% females) and 11 months, between time-point changes and their associations with language development in infancy (11 months) and toddl...
Infants’ attention to the mouth is thought to support language acquisition, yet this relation has been scantly tested longitudinally. This study assessed attention to the mouth and the eyes at 5.5 (n= 91; Polish, 49% females) and 11 months, between time-point changes, and their associations with language development in infancy (11 months) and toddl...
Infants’ limb movements evolve from disorganized to more selectively coordinated during the first year of life as they learn to navigate and interact with an ever-changing environment more efficiently. However, how these coordination patterns change during the first year of life and across different contexts is unknown. Here, we used wearable motio...
Visual search guides goal-directed action in humans and many other species, and it has been studied extensively in the past. Yet, no study has investigated the relative contributions of genes and environments to individual differences in visual search performance, or to which extent etiologies are shared with broader cognitive phenotypes. To addres...
Exploring unknown quantum systems is an experimental challenge. Recent proposals exploring quantum gravity have suggested circumventing this problem by considering the unknown system as a mediator between two known systems. If such a mediation can locally generate entanglement in the known systems, then the mediator must be non-classical. The same...
Recent proposals in quantum gravity have suggested that unknown systems can mediate entanglement between two known quantum systems, if and only if the mediator itself is non-classical. This approach may be applicable to the brain, where speculations about quantum operations in consciousness and cognition have a long history. Proton spins of bulk wa...
In the 1st year of life, infants gradually gain the ability to control their eye movements and explore visual scenes, which support their learning and emerging cognitive skills. These gains include domain-general skills such as rapid orienting or attention disengagement as well as domain-specific ones such as increased sensitivity to social stimuli...
Recent progress in the study of infant motor development has been achieved by ground-breaking paradigm shifts combined with clever and innovative tasks that place the infant center stage as the acting subject. One of the challenges that developmental scientists are facing today is understanding the complexity of infants’ spontaneous movements. Nove...
Efficient visual exploration in infancy is essential for cognitive and language development. It allows infants to participate in social interactions by attending to faces and learning about objects of interest. Visual scanning of scenes depends on a number of factors and early differences in efficiency are likely contributing to differences in lear...
In social animals, studying interactions with conspecifics is crucial for understanding even basic physiological, behavioral and cognitive processes. Due to a visible ‘ecological turn’ in behavioral research we observe a rapid development of novel methods devoted to studying interaction. In this paper, we offer a case study of an animal interactive...
There are multiple magnet resonance imaging (MRI) based approaches to studying the ageing brain. Getting older affects both the structure of the brain and our cognitive capabilities, but there is still no solid evidence on how ageing influences the mechanisms underlying the MRI signal. Here, we apply a zero-spin echoes (ZSEs) weighted MRI sequence...
Multiple visual attention mechanisms are active already in infancy, most notably one supporting orienting towards stimuli and another, maintaining appropriate levels of alertness, when exploring the environment. They are thought to depend on separate brain networks, but their effects are difficult to isolate in existing behavioural paradigms. Bette...
Autism spectrum disorder (ASD) is commonly conceived as the extreme end of a continuum. Research suggests that autistic individuals outperform typically developing controls in visual search. Thus, enhanced visual search may represent an adaptive trait associated with ASD. Here, using a large general population sample (N = 608, aged 9–14 years), we...
Standard looking-duration measures in eye-tracking data provide only general quantitative indices, while details of the spatiotemporal structuring of fixation sequences are lost. To overcome this, various tools have been developed to measure the dynamics of fixations. However, these analyses are only useful when stimuli have high perceptual similar...
That consciousness could have its' basis in quantum computing has been speculated for many years. Unfortunately, unitary quantum gates, the main ingredient of quantum computing, are not compatible with irreversible biological systems which are effectively non-unitary. That is why Penrose and Hameroff have suggested and Hagan et al. have theoretical...
The analysis of parent-child interactions is crucial for the understanding of early human development. Manual coding of interactions is a time-consuming task, which is a limitation in many projects. This becomes especially demanding if a frame-by-frame categorization of movement needs to be achieved. To overcome this, we present a computational app...
Recent proposals in quantum gravity have suggested that unknown systems can mediate entanglement between two known quantum systems, if and only if the mediator itself is non-classical. This approach may be applicable to the brain, where speculations about quantum operations in consciousness and cognition have a long history.
Proton spins of bulk wa...
Objectives
Intermolecular multiple quantum coherence (iMQC) [1] is a physical phenomenon based on dipolar interaction correlation distances, which have the potential to reveal information from tissue dynamics beyond flow and diffusion. A breakthrough of this fascinating contrast mechanism is mainly hindered by its low signal-to-noise ratio [2].
Her...
Here, we want to study how structural changes may affect the tissue pulsation which is related to blood circulation. We used a new method that allows to measure the sudden change of intracellular water concentration evoked by the cardiac pressure wave . An alteration in blood circulation of depressed patients should change the pressure but also the...
Here, we study the interplay between heart and brain in a new fashion using an ultrafast magnetisation transfer MR . This method allows the measurement of water dynamics in the ageing brain tissue which depend on cell integrity and on cardiac pulsation.
Questions
Question (1)
In our lab we are looking for using head mounted eye trackers in infants between 5 months and 2 years of age. I think you are using those models from pupil labs and we are interesting in this particular models as well. My question is, since these are 3D mounted, how did you design the model?