The authors present a systematic electrophysiological analysis of the sensory transformation in the OSN (antennae) and PN (olfactory lobe) layers of the adult Drosophila olfactory system.
On the contrary, it consists of a complex weft of areas differentiated in terms of location and functions, and able to provide a decisive contribution to achieving those motor-sensory transformations on which the individuation/location of objects and activation of movements depend that are required by most of the acts and behaviour comprising our daily experience.
Such sensory-motor transformations must be particularly fast and well tuned in escape behaviors, in which both the speed and accuracy of the evasive response determine whether an animal successfully avoids predation [1].
Space and time are integrated metrics for action and are mapped in brain areas involved in sensory-motor transformations for action, such as the parietal and prefrontal cortices, supplementary motor area, basal ganglia and cerebellum [4], [31].
Fast sensory-motor transformations should apply to near stimuli potentially requiring an urgent motor reaction, whereas a far stimulus could in principle be processed at later stages and thus may later affect the motor system.
In this sense this is an invariant that pertains to motions that are compliant with intended sensory-motor transformations.
Moreover, the approach used here can be a model for analyses of sensory-motor transformations in other systems.
At the top of this range, larger deflections neither increase the number of responsive cells nor enhance spike output, indicating a ceiling effect on the sensory response transformation in layer 2/3.
The ADAN and LDAP may reflect preparatory activity within the anterior and posterior parts of the parieto-premotor network (Matelli and Luppino, 2001; Luppino and Rizzolatti, 2000) that implements the complex sensory-motor transformations required to program and control visually guided reaching movements.
This topic is controversial and became the matter of different theories of imitation that pose either high-level (Goal-Directed Imitation theory, GOADI [4]) or lower-level order mechanisms (Direct Matching Hypothesis [5] and Ideomotor Framework of Imitation [6]) at the base of the sensory-motor transformation.
