As material for the study of functional connexions within a central nervous system,
invertebrates with ganglionated nerve cords appear to offer advantages absent elsewhere …

This paper reports preliminary results of an investigation into the circuitry of the central
neural oscillator which produces the crayfish swimmeret motor programme. Swimmerets are …

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

The existence of photosensitive neurons in the 6th abdominal ganglion of the crayfish has
been known for over forty years. These structures have been considered unique to …

Crayfish escape from potentially serious threats to life and limb by means of powerful
flexions of their abdomens, which thrust the animal through the water away from danger …

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 …

Crustaceans possess two pairs of prominent, movable sense organs on the rostral aspect of
their bodies termed antennae:(1) a relatively short, usually bifurcate pair, the 1st antennae …

The integrative properties of “descending” neuronal units in respect to visual, tactile and
proprioceptive stimuli were studied at the commissure level of the crayfish central nervous …

Certain stereotyped patterns of ani mal behavior are innate. They are shaped by evolution
and are in herited by successive generations; large ly unmodified by experience or learning …

We used an antiserum directed against γ-aminobutyric acid (GABA) fixed with
glutaraldehyde (Hoskins et al., Cell Tissue Res. 244: 243-252,'86) to label neurons with …