Publications by authors named "G de Zubicaray"
Article Synopsis
- Subcortical brain structures play a crucial role in various developmental and psychiatric disorders, and a study analyzed brain volumes in 74,898 individuals, identifying 254 genetic loci linked to these volumes, which accounted for up to 35% of variation.
- The research included exploring gene expression in specific neural cell types, focusing on genes involved in intracellular signaling and processes related to brain aging.
- The findings suggest that certain genetic variants not only influence brain volume but also have potential causal links to conditions like Parkinson’s disease and ADHD, highlighting the genetic basis for risks associated with neuropsychiatric disorders.
Article Synopsis
- The study investigates how abstract and concrete concepts are processed in the brain, highlighting the "concreteness effect" where concrete words are understood faster and more accurately than abstract words.
- Researchers establish a connection between phonological features of words and their concreteness ratings, finding that specific attributes like syllable count and phonological neighbors play a role.
- Results show that these phonological features significantly affect lexical processing across various language tasks, suggesting that models of language processing should consider the non-arbitrary relationship between word form and meaning.
Article Synopsis
- Subcortical brain structures play a crucial role in various disorders, and a study analyzed the genetic basis of brain volumes in nearly 75,000 individuals of European ancestry, revealing 254 loci linked to these volumes.
- The research identified significant gene expression in neural cells, relating to brain aging and signaling, and found that polygenic scores could predict brain volumes across different ancestries.
- The study highlights genetic connections between brain volumes and conditions like Parkinson's disease and ADHD, suggesting specific gene expression patterns could be involved in neuropsychiatric disorders.
It is well-established from fMRI experiments employing gradient echo echo-planar imaging (EPI) sequences that overt speech production introduces signal artefacts compromising accurate detection of task-related responses. Both design and post-processing (denoising) techniques have been proposed and implemented over the years to mitigate the various noise sources. Recently, fMRI studies of speech production have begun to adopt multiband EPI sequences that offer better signal-to-noise ratio (SNR) and temporal resolution allowing adequate sampling of physiological noise sources (e.
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- Tulving defined semantic memory as a large storehouse of meanings crucial for language and cognition, prompting various fields to research it with unique methods and terms.
- The varied interpretations of key concepts like "concept" across disciplines create confusion, contributing to the replication crisis in psychology and impacting communication and theory development.
- To address these issues, a multidisciplinary semantic glossary is being developed to provide clear definitions and foster shared understanding among researchers while acknowledging the challenges of bias and prescriptiveness.