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Multimodal Integration Across Spatiotemporal Scales to Guide Invertebrate Locomotion
- Source :
- Integrative and comparative biology. 61(3)
- Publication Year :
- 2021
-
Abstract
- Synopsis Locomotion is a hallmark of organisms which has enabled adaptive radiation to an extraordinarily diverse class of ecological niches, and allows animals to move across vast distances. Sampling from multiple sensory modalities enables animals to acquire rich information to guide locomotion. Locomotion without sensory feedback is haphazard; therefore, sensory and motor systems have evolved complex interactions to generate adaptive behavior. Notably, sensory-guided locomotion acts over broad spatial and temporal scales to permit goal-seeking behavior, whether to localize food by tracking an attractive odor plume or to search for a potential mate. How does the brain integrate multimodal stimuli over different temporal and spatial scales to effectively control behavior? In this review, we classify locomotion into three ordinally ranked hierarchical layers that act over distinct spatiotemporal scales: stabilization, motor primitives, and higher-order tasks, respectively. We discuss how these layers present unique challenges and opportunities for sensorimotor integration. We focus on recent advances in invertebrate locomotion due to their accessible neural and mechanical signals from the whole brain, limbs, and sensors. Throughout, we emphasize neural-level description of computations for multimodal integration in genetic model systems, including the fruit fly, Drosophila melanogaster, and the yellow fever mosquito, Aedes aegypti. We identify that summation (e.g., gating) and weighting—which are inherent computations of spiking neurons—underlie multimodal integration across spatial and temporal scales, therefore suggesting collective strategies to guide locomotion.
- Subjects :
- 0301 basic medicine
Adaptive behavior
Neurons
Computer science
Motor control
Sensory system
Plant Science
03 medical and health sciences
030104 developmental biology
0302 clinical medicine
Models of neural computation
Stimulus modality
Drosophila melanogaster
Spatio-Temporal Analysis
Aedes
Genetic model
Invertebrate locomotion
Animals
Animal Science and Zoology
Nervous System Physiological Phenomena
Temporal scales
Neuroscience
030217 neurology & neurosurgery
Locomotion
Subjects
Details
- ISSN :
- 15577023
- Volume :
- 61
- Issue :
- 3
- Database :
- OpenAIRE
- Journal :
- Integrative and comparative biology
- Accession number :
- edsair.doi.dedup.....21789c136c8c8e6fa9f12ff4dd069800