A Neural Model of Coordinated Head and Eye Movement Control

Abstract

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A neural model for eye–head–arm coordination

“…All experiments reported here were performed using the PC/BC-DIM hierarchical basis function neural network architecture proposed in [25][26][27][28][29]. Each level, or processing stage, in the hierarchy is implemented using the neural circuitry of three separate neural populations: the error, the prediction and the reconstruction neurons.…”

“…In [25] we built a three stage Predictive Coding/Biased Competition-Divisive Input Modulation (PC/BC-DIM) basis function network to control eye movements which we extended by adding one more PC/BC-DIM stage for coordinated eyes-head control [26] . In this article, we extend the network model proposed in [26] using another PC/BC-DIM stage to control arm movements for 3-D coordinated eyes-head-arm movements and to demonstrate the working of the proposed PC/BC-DIM basis function model.…”

“…In this article, we extend the network model proposed in [26] using another PC/BC-DIM stage to control arm movements for 3-D coordinated eyes-head-arm movements and to demonstrate the working of the proposed PC/BC-DIM basis function model. The training of the PC/BC-DIM basis function network was simplified to one step online learning and optimization without involving any heuristics or complex learning algorithms.…”

“…Specifically, to perform a direct visuo-motor transformation the proposed network transforms retinotopic visual information together with binocular eyes position information into a head-centred representation as in [25]. The head-centred representation is combined with information about the head position into a bodycentred representation [26]. This body-centred representation can be used to control coordinated eyes and head movements to shift gaze and to bring a visual target onto the most sensitive part of the retina called the fovea.…”

An eye and neck coordination strategy based on Jacobi matrix

“…To ensure the clarity of the image in the tracking process, it is necessary to control the eye and neck coordination movement in real time, constantly change the direction of vision and switch the point of fixation [1][2][3].…”