... and amplification by downstream neuronal circuits. This amplification has been observed in a population of neurons called small target motion detectors (STMDs), through a mechanism we term predictive gain modulation. As targets drift through the neuron's receptive field, spike frequency builds slowly over time...

..., and directional stimuli across the skin. Receptive fields were small, sometimes restricted to single Eimer's organs. Responses were consistent with a slowly adapting Merkel cell-neurite complex-like receptor class and a dynamically sensitive Pacinian-like rapidly adapting class. A second rapidly adapting class...

... regular outlines at night than during the day. If based on the 50 % sensitivity level, day and night eyes possessed receptive fields of almost identical width (approximately 2 °), but if sensitivities below the 50 % limit were included, then receptive fields at night were significantly more extensive. We...

...Toshio Ichikawa ABSTRACT The influence of interactions between the antagonistic centre and surround areas of receptive fields on the electrical activities of medulla neurones was examined in the larval swallowtail butterfly Papilio xuthus . Weak signals from the surround had a significant...

... cortex frontal cortex internal medullary lamina of the thalamus receptive field movement field gaze field saccades Spatial perception and sensory-guided movements are thought to depend upon several different neural representations of the environment (see Jeannerod, 1982 ; Howard, 1982...