C. Martinez, A. Juan and F. Casacuberta Using Recurrent Neural Networks for Automatic Chromosome Classification International Conference on Artificial Neural Networks ICANN 2002 Partial recurrent connectionist models can be used for classification of objects of variable length. In this work, an Elman network has been used for chromosome classification. Experiments were carried out using the Copenhagen data set. Local features over normal slides to the axis of the chromosomes were calculated, which produced a type of time-varying input pattern. Results showed an overall error rate of 5.7%, which is a good perfomance in a task which does not take into account cell context (isolated chromosome classification).