Year: 2014
Type: article
Abstract: As an animal navigates through complex terrain, it must consider sensory cues and move accordingly.This requires directed changes in leg movements and posture guided by ever changing external stimuli and internal physiological state.In the insect brain, the central complex (CC) receives highly preprocessed sensory information of different modalities and sends outputs to premotor regions in the brain and then to local circuits in the thoracic ganglia, suggesting it may play a role in the central control of adaptive locomotor behavior.In order to investigate the neural correlates of adaptive locomotor behavior in the CC, we performed tetrode recordings within the CC in cockroaches walking on an air-suspended ball (Chapter 2).We found that many CC units were tuned to specific locomotion states (i.e.speed and direction).Temporal analysis revealed that changes in firing rate of CC units preceded changes in locomotion and such correlation was only found in turning to one direction but not the other in some CC units.Furthermore, those biased units were located in the side of the brain ipsilateral to the direction of the turning speed they could predict.Moreover, electrical stimulation of the CC elicited or modified locomotion, and the direction of some evoked
Author: Peiyuan Guo
Institution: Case Western Reserve University
Language: English
Subfield: Cellular and Molecular Neuroscience
Field: Neuroscience
Domain: Life Sciences
Open Access status: green
OpenAlex ID: W2602245263