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Total 355 results found since Jan 2013.
Differentiated somatic gene expression is triggered in the dorsal hippocampus and the anterior retrosplenial cortex by hippocampal synaptic plasticity prompted by spatial content learning
Brain Struct Funct. 2023 Sep 10. doi: 10.1007/s00429-023-02694-z. Online ahead of print.ABSTRACTHippocampal afferent inputs, terminating on proximal and distal subfields of the cornus ammonis (CA), enable the functional discrimination of 'what' (item identity) and 'where' (spatial location) elements of a spatial representation. This kind of information is supported by structures such as the retrosplenial cortex (RSC). Spatial content learning promotes the expression of hippocampal synaptic plasticity, particularly long-term depression (LTD). In the CA1 region, this is specifically facilitated by the learning of item-place ...
Source: Brain Structure and Function - September 10, 2023 Category: Neuroscience Authors: Thu-Huong Hoang Denise Manahan-Vaughan Source Type: research
On-site colorimetric food spoilage monitoring with smartphone embedded machine learning
Talanta. 2023 Aug 2;266(Pt 1):125021. doi: 10.1016/j.talanta.2023.125021. Online ahead of print.ABSTRACTReal-time and on-site food spoilage monitoring is still a challenging issue to prevent food poisoning. At the onset of food spoilage, microbial and enzymatic activities lead to the formation of volatile amines. Monitoring of these amines with conventional methods requires sophisticated, costly, labor-intensive, and time consuming analysis. Here, anthocyanins rich red cabbage extract (ARCE) based colorimetric sensing system was developed with the incorporation of embedded machine learning in a smartphone application for r...
Source: Talanta - August 7, 2023 Category: Chemistry Authors: Vakkas Do ğan Melodi Evliya Leyla Nesrin Kahyaoglu Volkan K ılıç Source Type: research
Increasingly cautious sampling, not the black colouration of unpalatable prey, is used by fish in avoidance learning
Anim Cogn. 2023 Jul 28. doi: 10.1007/s10071-023-01815-9. Online ahead of print.ABSTRACTThe efficiency of aposematic colouration of prey is based on the innate bias or facilitation of avoidance learning of predators. In many toxic bufonids, larvae are uniformly black, which is considered a warning signal. We compared fish predation on normal (black) and 'transient albino' (greyish) common toad Bufo bufo tadpoles that did not differ in toxicity or activity. In a two-stage experiment, each fish was presented with tadpoles of one colour in the first trial and the other colour in a subsequent trial. While tadpoles sampled by fi...
Source: Animal Cognition - July 28, 2023 Category: Zoology Authors: Miko łaj Kaczmarski Jan M Kaczmarek Krzysztof Kowalski Karol Borowski Jacek K ęsy Janusz Kloskowski Source Type: research
Repeated parallel differentiation of social learning differences in benthic and limnetic threespine stickleback fish
Biol Lett. 2023 Jul;19(7):20230208. doi: 10.1098/rsbl.2023.0208. Epub 2023 Jul 26.ABSTRACTIndividuals can reduce sampling costs and increase foraging efficiency by using information provided by others. One simple form of social information use is delayed local enhancement or increased interest in a location because of the past presence of others. We tested for delayed local enhancement in two ecomorphs of stickleback fish, benthic and limnetic, from three different lakes with putative independent evolutionary origins. Two of these lakes have reproductively isolated ecomorphs (species-pairs), whereas in the third, a previou...
Source: Biology Letters - July 25, 2023 Category: Biology Authors: Jason Keagy Whitley Lehto Ross Minter Sarah Machniak Oynx Baird Janette W Boughman Source Type: research
A Fish Eye View: Retinal Morphogenesis from Optic Cup to Neuronal Lamination
Annu Rev Cell Dev Biol. 2023 Jul 7. doi: 10.1146/annurev-cellbio-012023-013036. Online ahead of print.ABSTRACTThe neural retina, at the back of the eye, is a fascinating system to use to discover how cells form tissues in the context of the developing nervous system. The retina is the tissue responsible for perception and transmission of visual information from the environment. It consists of five types of neurons and one type of glia cells that are arranged in a highly organized, layered structure to assure visual information flow. To reach this highly ordered arrangement, intricate morphogenic movements are occurring at ...
Source: Annual Review of Cell and Developmental Biology - July 7, 2023 Category: Cytology Authors: Caren Norden Source Type: research
