Broadbent's filter theory from 1956 proposes that multiple stimuli enter our short-term memory simultaneously but only one can pass through a selective filter for further processing, while other stimuli are screened out. The filter allows just a single stimulus to pass through at a time for higher-level processing in the brain, making us aware of only that one stimulus.

12. bright

14. FILTERTHEORY
• Was developed by Broadbent (1956).
• According to this theory, many stimuli simultaneously enter our receptors
creating a kind of “bottleneck” situation.
• Moving through the short-term memory system, they enter the selective
filter, which allows only one stimulus to pass through for higher levels of
processing.
• Other stimuli are screened out at that moment of time.Thus, we become
aware of only that stimulus, which gets access through the selective filter.

15. FILTERTHEORY

17. FILTER-ATTENUATIONTHEORY