Which model modifies Broadbent's model and includes an attenuator to analyze messages?

The correct answer is the Treisman's attenuation model, which builds upon Broadbent's early selection model. In Broadbent's model, incoming sensory information is filtered, with only the attended message passing through for further processing. This model suggested a strict filter that completely blocked out unattended stimuli.

Treisman's attenuation model introduced the concept of an 'attenuator' that doesn't wholly filter out the unattended message; rather, it lowers the volume of this message, allowing some information to be processed even if it's not the focus of attention. This means that while the primary message is being actively processed, some information from the other messages can still be analyzed and may influence perception and thought. This modification allows for a more nuanced understanding of how attention works, recognizing that some stimuli can capture attention even when they are not the focus, based on their relevance or importance.

The other options do not relate directly to the modification of Broadbent's original model regarding the handling of messages. Semantic regularities pertain to the use of meanings or context to process information. Unconscious inference refers to a theory about how perceptions are formed through unconscious processes. A saliency map represents areas of visual attention but does not pertain to the auditory processing model established by Broadb