Is the avian hippocampus a functional homologue of the mammalian hippocampus?
Abstract
The effects of hippocampal lesions on the processing and retention of visual and spatial information in birds and mammals is reviewed. Both birds and mammals with damage to the hippocampus are severely impaired on a variety of spatial tasks, such as navigation, maze learning, and the retention of spatial information. In contrast, both birds and mammals with damage to the hippocampus are not impaired on a variety of visual tasks, such as delayed matching-to-sample, concurrent discrimination, or retention of a visual discrimination. In addition, both birds and mammals with hippocampal damage display impairments in the acquisition of an autoshaped response, as well as alterations in response suppression. These findings suggest that the avian hippocampus is a functional homologue of the mammalian hippocampus, and that in both birds and mammals the hippocampus is important for the processing and retention of spatial, rather than purely visual information.
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Hippocampal lesions in mammals, birds, and reptiles produce impairments on spatial tasks that require the use of map-like or relational spatial memory.
“For example, in mammals [39,57,72,149], birds [97,98,99,150,151,152,153], and reptiles [112,154,155,156,157], the hippocampal lesions produce impairments on spatial tasks that require the use of map-like or relational spatial memory.”
From Spatial Cognition in Teleost Fish: Strategies and Mechanisms (2021) · cites this paper as [150]
Extensive evidence in birds suggests that the processing and storage of spatial information contributing to episodic-like memory is dependent on the avian hippocampus.
“While extensive evidence in birds suggests that the processing and storage of spatial information contributing to episodic-like memory is dependent on the avian hippocampus [130–132]”
From Is episodic-like memory <i>like</i> episodic memory? (2024) · cites this paper as [131]
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References 182 · Cited by 237
- Authors
- Colombo, M., & Broadbent, N.
- Affiliations
- University of Otago (NZ)
- Corresponding author
- Colombo, M
- ORCID
- Colombo, M
- Venue
- Neuroscience & Biobehavioral Reviews
- Publisher
- Elsevier BV
- Published
- 2000-06
- Volume
- 24
- Issue
- 4
- Pages
- 465-484
- ISSN
- 0149-7634 (ISSN-L)
- OpenAlex
- W2023948834
- Cited by
- 237
- References
- 182
- Citations by year
- 2026: 6 · 2025: 5 · 2024: 8 · 2023: 6 · 2022: 17 · 2021: 8 · 2020: 11 · 2019: 5 · 2018: 7 · 2017: 7 · 2016: 8 · 2015: 9 · 2014: 13 · 2013: 15 · 2012: 9
- FWCI
- 0.85
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Neuroscience & Biobehavioral Reviews (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
- Physical Sciences › Engineering › Automotive Engineering › Spatial Cognition and Navigation
- Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
- Keywords
- avian hippocampus, functional homology, hippocampal lesions, spatial learning, spatial memory, visual discrimination, spatial navigation, maze learning, response suppression, birds, mammals
- MeSH terms
- Animals, Behavior, Animal, Birds, Hippocampus, Humans, Mammals, Species Specificity, Visual Perception
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