Publications by authors named "M G Malmierca"

The genus is one of the largest producers of secondary metabolites with bioactive properties of interest. However, many of the genes involved in synthesizing these compounds are silenced under laboratory conditions. One of the strategies used to activate these metabolic pathways is the elimination of repressor genes, which prevent the transcription of other genes.

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The detection of novel, low probability events in the environment is critical for survival. To perform this vital task, our brain is continuously building and updating a model of the outside world; an extensively studied phenomenon commonly referred to as predictive coding. Predictive coding posits that the brain is continuously extracting regularities from the environment to generate predictions.

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Article Synopsis
  • The research focuses on understanding how the brain detects new or novel stimuli, which is still not fully grasped, particularly regarding its effects on behavior.
  • A protocol is proposed for measuring electrical activity in the auditory cortex of macaque monkeys while they engage in tasks that test their ability to detect novelty.
  • The paper outlines the essential steps for training the monkeys, surgically preparing them, accurately placing electrodes using MRI, and recording their neuronal activity to establish a connection between this activity and their behavior in novelty detection.
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Background: Volatile compounds are key elements in the interaction and communication between organisms at both interspecific and intraspecific levels. In complex bacterial communities, the emission of these fast-acting chemical messengers allows an exchange of information even at a certain distance that can cause different types of responses in the receiving organisms. The changes in secondary metabolism as a consequence of this interaction arouse great interest in the field of searching for bioactive compounds since they can be used as a tool to activate silenced metabolic pathways.

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