Have a look at this paragraph.

Information is received from the environment by a range of sensory registers that reside in sensory memory. The sensory receptors are modality specific: a register exists for each sensory modality such as vision, auditory and olfactory. These have the ability to transform stimuli from the environment into physiological representations, which can be understood and retained in the memory system. They therefore have a key role to play in human cognitive processing. Sensory registers also play a role in the larger system of memory.

Which techniques were used in the model paragraph above?
(there may be several correct answers to this question)