A neural correlate of sensory consciousness in a corvid bird

doi:10.1126/science.abb1447

GSTDTAP > 气候变化

DOI	10.1126/science.abb1447
	A neural correlate of sensory consciousness in a corvid bird
	Andreas Nieder; Lysann Wagener; Paul Rinnert
	2020-09-25
发表期刊	Science
出版年	2020
英文摘要	Humans have tended to believe that we are the only species to possess certain traits, behaviors, or abilities, especially with regard to cognition. Occasionally, we extend such traits to primates or other mammals—species with which we share fundamental brain similarities. Over time, more and more of these supposed pillars of human exceptionalism have fallen. Nieder et al. now argue that the relationship between consciousness and a standard cerebral cortex is another fallen pillar (see the Perspective by Herculano-Houzel). Specifically, carrion crows show a neuronal response in the palliative end brain during the performance of a task that correlates with their perception of a stimulus. Such activity might be a broad marker for consciousness. Science , this issue p. [1626][1]; see also p. [1567][2] Subjective experiences that can be consciously accessed and reported are associated with the cerebral cortex. Whether sensory consciousness can also arise from differently organized brains that lack a layered cerebral cortex, such as the bird brain, remains unknown. We show that single-neuron responses in the pallial endbrain of crows performing a visual detection task correlate with the birds’ perception about stimulus presence or absence and argue that this is an empirical marker of avian consciousness. Neuronal activity follows a temporal two-stage process in which the first activity component mainly reflects physical stimulus intensity, whereas the later component predicts the crows’ perceptual reports. These results suggest that the neural foundations that allow sensory consciousness arose either before the emergence of mammals or independently in at least the avian lineage and do not necessarily require a cerebral cortex. [1]: /lookup/doi/10.1126/science.abb1447 [2]: /lookup/doi/10.1126/science.abe0536
领域	气候变化 ; 资源环境
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文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/296519
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Andreas Nieder,Lysann Wagener,Paul Rinnert. A neural correlate of sensory consciousness in a corvid bird[J]. Science,2020.
APA	Andreas Nieder,Lysann Wagener,&Paul Rinnert.(2020).A neural correlate of sensory consciousness in a corvid bird.Science.
MLA	Andreas Nieder,et al."A neural correlate of sensory consciousness in a corvid bird".Science (2020).