Results 21 to 30 of about 53,027 (281)
Translational Psychiatry, 2022 Individuals deal with adversity and return to a normal lifestyle when adversity ends. Nevertheless, in specific cases, traumas may be preceded by memory distortions in stress-related malaises, and memory extinction impairment is strictly associated with ...
Kairo Alan Albernaz-Mariano +1 more
doaj +1 more source
Sexual selection protects against extinction [PDF]
Nature, 2015 Reproduction through sex carries substantial costs, mainly because only half of sexual adults produce offspring. It has been theorized that these costs could be countered if sex allows sexual selection to clear the universal fitness constraint of mutation load.
Lumley AJ +10 more
openaire +6 more sources
Scientific Reports, 2021 Extinction memory destabilized by recall is restabilized through mTOR-dependent reconsolidation in the hippocampus, but the upstream pathways controlling these processes remain unknown.
Andressa Radiske +5 more
doaj +1 more source
Reduced strength and increased variability of extinction selectivity during mass extinctions
Royal Society Open Science, 2023 Two of the traits most often observed to correlate with extinction risk in marine animals are geographical range and body size. However, the relative effects of these two traits on extinction risk have not been investigated systematically for either background times or during mass extinctions.
Pedro M. Monarrez +2 more
openaire +3 more sources
A comparison of the effects of random and selective mass extinctions on erosion of evolutionary history in communities of digital organisms. [PDF]
PLoS ONE, 2012 The effect of mass extinctions on phylogenetic diversity and branching history of clades remains poorly understood in paleobiology. We examined the phylogenies of communities of digital organisms undergoing open-ended evolution as we subjected them to ...
Gabriel Yedid +3 more
doaj +1 more source
Selection, Subdivision and Extinction and Recolonization [PDF]
Genetics, 2004 Abstract In a subdivided population, the interaction between natural selection and stochastic change in allele frequency is affected by the occurrence of local extinction and subsequent recolonization. The relative importance of selection can be diminished by this additional source of stochastic change in allele frequency.
openaire +3 more sources
Dichotic-listening performance after complete callosotomy: No relief from left-ear extinction by selective attention [PDF]
, 2023 The surgical section of the corpus callosum (callosotomy) has been frequently demonstrated to result in a left-ear extinction in dichotic listening. That is, callosotomy patients report the left-ear stimulus below chance level, resulting in substantially
Ren ́e Westerhausen +6 more
core +2 more sources
PLoS ONE, 2017 The kind and duration of phylogenetic topological "signatures" left in the wake of macroevolutionary events remain poorly understood. To this end, we examined a broad range of simulated phylogenies generated using trait-biased, heritable speciation ...
Guan-Dong Yang +2 more
doaj +1 more source
Translational Psychiatry, 2023 The dentate gyrus (DG) of the hippocampus encodes contextual information associated with fear, and cell activity in the DG is required for acquisition and extinction of contextual fear.
Guo Xiang +10 more
doaj +1 more source
A global ecological signal of extinction risk in marine ray-finned fishes (class Actinopterygii)
Cambridge Prisms: Extinction, 2023 Many marine fish species are experiencing population declines, but their extinction risk profiles are largely understudied in comparison to their terrestrial vertebrate counterparts.
Trevor M. Bak +5 more
doaj +1 more source