Sensory receptors Receptors are specialized nerve cells that transduce energy into neural signals Receptors lack axons, form synapses with dendrites of other sensory neurons Receptors are mode specific Law of specific Nerve Energies": sensory messages are carried on separate channels to different areas of the brain Receptors detect a small range of energy levels Eve:400-700nM Ear:20-20.000Hz Taste buds: specific chemicalsSensory Receptors • Receptors are specialized nerve cells that transduce energy into neural signals – Receptors lack axons, form synapses with dendrites of other sensory neurons • Receptors are “mode” specific – “Law of Specific Nerve Energies”: sensory messages are carried on separate channels to different areas of the brain • Receptors detect a small range of energy levels – Eye: 400-700 nM – Ear: 20-20,000 Hz – Taste buds: specific chemicals