P. Simmons

Publications75
h-index24
Citations1,979
Highly Influential Citations149
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Orthopteran DCMD neuron: a reevaluation of responses to moving objects. I. Selective responses to approaching objects.
1. The "descending contralateral movement detector" (DCMD) neuron in the locust has been challenged with a variety of moving stimuli, including scenes from a film (Star Wars), moving disks, and… Expand
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Role of an identified looming-sensitive neuron in triggering a flying locust's escape.
Flying locusts perform a characteristic gliding dive in response to predator-sized stimuli looming from one side. These visual looming stimuli trigger trains of spikes in the descending contralateral… Expand
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Gliding behaviour elicited by lateral looming stimuli in flying locusts
We challenged tethered, flying locusts with visual stimuli looming from the side towards one eye in a way that mimics the approach of a predatory bird. Locusts respond to the lateral approach of a… Expand
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Seeing what is coming: building collision-sensitive neurones
The image of a rapidly approaching object has to elicit a quick response. An animal needs to know that the object is approaching on a collision course and how imminent a collision is. The relevant… Expand
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Motor activity and trajectory control during escape jumping in the locust Locusta migratoria
We investigated the escape jumps that locusts produce in response to approaching objects. Hindleg muscular activity during an escape jump is similar to that during a defensive kick. Locusts can… Expand
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Orthopteran DCMD neuron: a reevaluation of responses to moving objects. II. Critical cues for detecting approaching objects.
1. We examine the critical image cues that are used by the locust visual system for the descending contralateral motion detector (DCMD) neuron to distinguish approaching from receding objects. Images… Expand
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Responses to object approach by a wide field visual neurone, the LGMD2 of the locust: Characterization and image cues
Abstract The LGMD2 belongs to a group of giant movement-detecting neurones which have fan-shaped arbors in the lobula of the locust optic lobe and respond to movements of objects. One of these… Expand
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A LOCUST WIND AND OCELLAR BRAIN NEURONE
1.One of the large descending brain neurones in each half of the central nervous system of a locust is probably important in regulating the attitude of the locust9s flight in the pitch plane. This… Expand
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Local circuit for the computation of object approach by an identified visual neuron in the locust
  • F. Rind, P. Simmons
  • Biology, Medicine
  • The Journal of comparative neurology
  • 8 August 1998
The lobula giant movement detector (LGMD) neuron in the locust visual system is part of a motion‐sensitive pathway that detects objects approaching on a collision course. Here we show that the… Expand
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Connexions between a movement-detecting visual interneurone and flight motoneurones of a locust.
SUMMARY Both of the descending contralateral movement detector (DCMD) neurones of Schistocerca americana gregaria, which respond to stimulation of the contralateral eye or to loud noises, mediate… Expand
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