Lumen-traveling biological interface device

A lumen-traveling device, comprising:

• a propelling mechanism capable of producing directional movement of the lumen-traveling device through a body lumen by producing relative extension and retraction of at least two lumen-wall-engaging structures with respect to each other in combination with alternate engagement and disengagement of at least one wall of the body lumen;
• at least one structural element configured to at least intermittently permit the movement of fluid through the lumen-traveling device;
• a steering mechanism capable of modifying a direction of movement of the lumen-traveling device;
• at least one electromagnetic transducer configured for at least one of producing an output signal representative of a bioelectromagnetic signal sensed from a target tissue, the bioelectromagnetic signal generated by a biological signal source in the target tissue, and delivering a non-ablative electromagnetic stimulus to the target tissue;
• at least one of a signal processing portion capable of processing the output signal from the electromagnetic transducer and a stimulus source capable of producing the electromagnetic stimulus for delivery to the target tissue with the electromagnetic transducer;
• and
• a sensor capable of sensing a local condition and generating a sense signal.