摘要：SummaryThe mammalian temporal cortex can be functionally segregated into regions that encode spatial information and others that are predominantly responsible for object recognition. In the present study, we report comparable functional segregation in the avian brain. Using Japanese quail, we find that bilateral lesions of the hippocampus (Hp) produce robust deficits in performance in a foraging array (FA) spatial memory task, while sparing spontaneous object recognition (SOR). In contrast, lesions to the adjacent area parahippocampalis (APH) compromise both SOR and FA. These observations demonstrate a functional dissociation between Hp and APH that is comparable to the distinctions seen in mammals between the hippocampus and surrounding temporal cortex.Graphical abstractDisplay OmittedHighlights•Are spatial and object information separable in the avian hippocampal formation?•Quail with lesions to the hippocampus are impaired in a spatial foraging task•Lesions to area parahippocampalis also selectively impair object recognition•Like mammals, bird hippocampus shows functional gradients in information processingBiological sciences; Neuroscience; Neuroanatomy
