There is a recent paper, The Connectome of an Insect Brain, submitting a 12-year effort to map the brain of the larval fruit fly, Drosophila melanogaster, showing "3,016 neurons and 548,000 synapses." The high-resolution imaging project was useful to "identifying neuron types, network hubs and circuit motifs."
There is a recent article, Calm Down. There is No Conscious A.I., making the case that recent advances in artificial intelligence do not make them conscious, since the models do not have feelings, subjective experience and so on. There is another recent article, Scientists Are Growing Mini Brains in the Lab. Are They ... Conscious?, discussing likelihoods for the consciousness of brain Organoids and the ethics.
Language is a property of the human mind, conceptually.
There is a recent paper, Psychedelics Promote Neuroplasticity Through the Activation of Intracellular 5-HT2A Receptors, on the mechanism underlying psychedelic action for dendritic growth of neurons in the cortex. The study "emphasizes the role of location bias in 5-HT2AR signaling, identifies intracellular 5-HT2ARs as a therapeutic target, and raises the intriguing possibility that serotonin might not be the endogenous ligand for intracellular 5-HT2ARs in the cortex."
There is a recent paper, Foreign Accent Syndrome as a Heralding Manifestation of Transformation to Small Cell Neuroendocrine Prostate Cancer, stating that, "a man in his 50s with metastatic hormone-sensitive prostate cancer, receiving androgen deprivation therapy and abiraterone acetate/prednisone, presented with an uncontrollable ‘Irish brogue’ accent despite no Irish background, consistent with foreign accent syndrome (FAS). He had no neurological examination abnormalities, psychiatric history or MRI of the brain abnormalities at symptom onset."