Cobalt impregnations of the crayfish, Procambarus, mechanoreceptive afferents and
interneurons (Fig. 2) indicate that the afferents end with little terminal branching within the …

A number (∼ 60%) of crayfish mechanoreceptive interneurons have bilateral receptive fields
(Fig. 1). Three basic connectivity patterns participate in the integration of bilateral inputs by …

We have used intracellular neuropil recordings and dye injection to identify a pair of
nonspiking, Local, Directionally Selective (LDS) interneurons in the terminal ganglion of the …

Cobalt backfills were used to demonstrate a population of approximately 50 paired
interneurons in the 6th abdominal ganglion of the crayfish, Procambarus clarkii. Intracellular …

The LDS interneuron is an identified, nonspiking, local interneuron which mediates across-
the-midline lateral inhibition of anteriorally projecting mechanosensory interneurons in the …

1. Interneurons activated by mechanosensory hairs on the crayfish telson respond
selectively to directional displacements of the medium; the directions of maximum sensitivity …

1. Sucrose-gap and intracellular recordings were used to study the primary afferent
depolarization (PAD) produced in mechanosensory afferents by impulses in lateral and …

1. The activity of interneurons in the abdominal nerve cord of the crayfish has been recorded
using intracellular electrondes in ganglionic neuropile, or by isolation of fibers by dissection …

Within the hierarchy of sensory interneurones in the crayfish, individual cells exist which
code specifically for directional components of waterborne stimuli. The caudal photoreceptor …

The inhibition of near-field mechanosensory elements in crayfish was analyzed by intra-and
extracellular recording. 2. In intact, restrained animals, inhibition of mechanosensory …