Swapping mallards: monocular imprints in ducklings are unavailable to the opposite eye

Martinho, Antone; Kacelnik, Alex

doi:10.1016/j.anbehav.2016.10.010

Cited by 5 publications

(5 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Birds lack a corpus callosum, and in other avian circuits there is even less connection with the contralateral hemisphere than in mammals (Letzner et al, 2016; Wittek et al, 2021). This distinction is meaningful, likely accounting for some extreme lateralization of sensory and motor brain functions in birds (Graves and Goodale, 1977; Clayton, 1993; Vu et al, 1998; Long and Fee, 2008; Martinho et al, 2015; Martinho and Kacelnik, 2016). We were therefore motivated to quantify the relative ipsilateral and contralateral contribution of inputs into HF.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Topography of inputs into the hippocampal formation of a food-caching bird

Applegate

Gutnichenko

Aronov

2023

Preprint

View full text Add to dashboard Cite

The mammalian hippocampal formation (HF) is organized into domains associated with different functions. These differences are driven in part by the pattern of input along the hippocampal long axis, such as visual input to the septal hippocampus and amygdalar input to temporal hippocampus. HF is also organized along the transverse axis, with different patterns of neural activity in the hippocampus and the entorhinal cortex. In some birds, a similar organization has been observed along both of these axes. However, it is not known what role inputs play in this organization. We used retrograde tracing to map inputs into HF of a food-caching bird, the black-capped chickadee. We first compared two locations along the transverse axis: the hippocampus and the dorsolateral hippocampal area (DL), which is analogous to the entorhinal cortex. We found that pallial regions predominantly targeted DL, while some subcortical regions like the lateral hypothalamus (LHy) preferentially targeted the hippocampus. We then examined the hippocampal long axis and found that almost all inputs were topographic along this direction. For example, the anterior hippocampus was preferentially innervated by thalamic regions, while posterior hippocampus received more amygdalar input. Some of the topographies we found bear resemblance to those described in the mammalian brain, revealing a remarkable anatomical similarity of phylogenetically distant animals. More generally, our work establishes the pattern of inputs to HF in chickadees. Some of these patterns may be unique to chickadees, laying the groundwork for studying the anatomical basis of these birds' exceptional hippocampal memory.

show abstract

Section: Resultsmentioning

confidence: 99%

“…Such a pattern of ‘ ipsilateral learning ’ is not unique to chickadees. In other visual tasks, like reversal learning, homing in pigeons, and imprinting in ducklings, there is also a lack of interocular transfer of learned information (Graves and Goodale, 1977; Martinho et al, 2015; Martinho and Kacelnik, 2016).…”

Section: Discussionmentioning

confidence: 99%

Topography of inputs into the hippocampal formation of a food-caching bird

Applegate

Gutnichenko

Aronov

2023

Preprint

View full text Add to dashboard Cite

show abstract

“…Birds lack a corpus callosum, and in other avian circuits, there is even less connection with the contralateral hemisphere than in mammals (Letzner et al., 2016; Wittek et al., 2021). This distinction is meaningful, likely accounting for some extreme lateralization of sensory and motor brain functions in birds (Clayton, 1993; Graves & Goodale, 1977; Long & Fee, 2008; Martinho & Kacelnik, 2016; Martinho et al., 2015; Vu et al., 1998). We were, therefore, motivated to quantify the relative ipsilateral and contralateral contribution of inputs into HF.…”

Section: Resultsmentioning

confidence: 99%

“…Such a pattern of “ipsilateral learning” is not unique to chickadees. In other visual tasks, like reversal learning, homing in pigeons, and imprinting in ducklings, there is also a lack of interocular transfer of learned information (Graves & Goodale, 1977; Martinho & Kacelnik, 2016; Martinho et al., 2015).…”

Section: Discussionmentioning

confidence: 99%

Topography of inputs into the hippocampal formation of a food‐caching bird

Applegate

Gutnichenko

Aronov

2023

J of Comparative Neurology

View full text Add to dashboard Cite

The mammalian hippocampal formation (HF) is organized into domains associated with different functions. These differences are driven in part by the pattern of input along the hippocampal long axis, such as visual input to the septal hippocampus and amygdalar input to the temporal hippocampus. HF is also organized along the transverse axis, with different patterns of neural activity in the hippocampus and the entorhinal cortex. In some birds, a similar organization has been observed along both of these axes. However, it is not known what role inputs play in this organization. We used retrograde tracing to map inputs into HF of a food‐caching bird, the black‐capped chickadee. We first compared two locations along the transverse axis: the hippocampus and the dorsolateral hippocampal area (DL), which is analogous to the entorhinal cortex. We found that pallial regions predominantly targeted DL, while some subcortical regions like the lateral hypothalamus (LHy) preferentially targeted the hippocampus. We then examined the hippocampal long axis and found that almost all inputs were topographic along this direction. For example, the anterior hippocampus was preferentially innervated by thalamic regions, while the posterior hippocampus received more amygdalar input. Some of the topographies we found bear a resemblance to those described in the mammalian brain, revealing a remarkable anatomical similarity of phylogenetically distant animals. More generally, our work establishes the pattern of inputs to HF in chickadees. Some of these patterns may be unique to chickadees, laying the groundwork for studying the anatomical basis of these birds’ exceptional hippocampal memory.

show abstract

“…2D). Like the imprinting behavior of birds (Martinho & Kacelnik, 2016), many insects display associative learning (i.e., strong preferences to the VOC profiles in the places where they are born) (Proffit et al, 2015; Wang et al, 2017), hence imposing strong selection on VOC profiles.…”

Section: Discussionmentioning

confidence: 99%

Selection to attract pollinators and to confuse antagonists specializes fig–pollinator chemical communications

Yang

Zhang

Chen

et al. 2022

J of Sytematics Evolution

View full text Add to dashboard Cite

Chemical communication is critical in establishing angiosperm-pollinator mutualisms. However, our understanding of how chemical communication shapes coevolution remains limited. Here, we integrated information theory to model three coevolutionary scenarios (I-III), where the pollinator fitness is always optimized by the highest certainty of chemical information provided by plants, but plant fitness is determined by (I) the certainty of chemical information attracting pollinators, (II) the uncertainty of chemical information confusing antagonists, or (III) both aspects. We found that the statistical properties of empirical plant volatiles from 45 pairs of fig-pollinator mutualisms were best explained by the selection from both pollinators and antagonists (scenario III). Under this scenario, plant-pollinator mutualisms evolve to be specialized and as few as two volatile chemicals could supply sufficient information for pollinators' host identification. Our study provides new insights into plant-pollinator coevolution and will facilitate further studies on the evolution and diversification in specialized plant-pollinator-herbivore systems.

show abstract

Swapping mallards: monocular imprints in ducklings are unavailable to the opposite eye

Cited by 5 publications

References 32 publications

Topography of inputs into the hippocampal formation of a food-caching bird

Topography of inputs into the hippocampal formation of a food-caching bird

Topography of inputs into the hippocampal formation of a food‐caching bird

Selection to attract pollinators and to confuse antagonists specializes fig–pollinator chemical communications

Contact Info

Product

Resources

About