Adaptive motor actions require prior knowledge of instrumental contingencies. With practice, these actions can become highly automatic in nature. However, the molecular and anatomical substrates mediating these related forms of learning are not understood. In the present study, we used in situ hybridization to measure the mRNA levels of two…

It is argued that the current theoretical orientation of motor behavior research toward information processing is only at the descriptive level. An outline of requirements for motor behaviorists to discover the mental operations that precede motor performance is presented. It is suggested that unless basic knowledge is obtained on how movement…

In two experiments, first and fourth grade subjects performed a speeded card sorting task with either integral or nonintegral dimensions. The dimensions were arranged so that subjects sorted on three types of task: (1) single dimension, (2) correlated dimensions, and (3) orthogonal dimensions. (Author/MS)

The project described here focused on obtaining basic information on the memory representation of movement stimuli. When a learner makes a simple movement and is later asked to reproduce it, what is abstracted from the first movement that allows accurate reproduction of the second. The underlying assumption of the project was that unless basic…