Part I Sensory receptors specialized nerve cells that transduce energy into neural signals “ mode specific Law of Specific Nerve Energies: sensory messages are carried on separate channels to different areas of the brain detect a small range of energy levels Eye:400-700nM Ear:20-20,000Hz Taste buds: specific chemicalsPart 1 Sensory Receptors • specialized nerve cells that transduce energy into neural signals • “mode” specific – “Law of Specific Nerve Energies”: sensory messages are carried on separate channels to different areas of the brain • detect a small range of energy levels – Eye: 400-700 nM – Ear: 20-20,000 Hz – Taste buds: specific chemicals