Complex sentence: While at Rockefeller, Ralph nurtured a latent interest in theoretical studies of cortical visual processing and the rapidly emerging field of optical imaging of cortex, through collaboration with a pioneering group led by Amiram Grinvald.
Split into simpler sentences: While at Rockefeller, Ralph nurtured a latent interest in theoretical studies of cortical visual processing. He also got his feet wet in the rapidly emerging field of optical imaging of cortex, through collaboration with a pioneering group led by Amiram Grinvald.