Available detail, performed task, and report are distinct. Two studies show definite omissions under their conditions, not personal diagnosis. Compare required versions and name result limits if relevant to your purpose.
Questions explored
Are replacing a person and an unexpected gorilla one procedure?
No. State comparison and reporting an unexpected event have different tasks and conditions.
Can an omission assess an acquaintance’s powers of observation?
These papers supply no such personal assessment. Clarify the definite question and result, not a general verdict.
Is document comparison proven to eliminate omissions?
No. It is editorial organisation of a question with explicit result scope, not a method tested in these studies.
Key distinctions
Discriminability in simultaneous comparison does not establish noticing under another task. (United Wisdom: source and conditions retained; catalogue and document comparison editorial.)
The first 1998 study involved 15 Cornell pedestrians; authors report 7 noticing a partner replaced during a door interruption. (United Wisdom: source and conditions retained; catalogue and document comparison editorial.)
The main 1999 study analyzed 192 observers after 36 exclusions across 16 conditions; 54% noticed across all conditions/events. (United Wisdom: source and conditions retained; catalogue and document comparison editorial.)
James discusses interest and selection in historical reasoning, not measurement of the modern experiments. (United Wisdom: source and conditions retained; catalogue and document comparison editorial.)
Absence of a report differs from explaining an inner event; the 1999 awareness versus rapid forgetting qualification remains. (United Wisdom: source and conditions retained; catalogue and document comparison editorial.)
The voluntary editorial practice measures no general attentiveness and has no effectiveness established here. (United Wisdom: source and conditions retained; catalogue and document comparison editorial.)
Limits of interpretation
- Do not transfer frequencies from definite limited samples to every person. Distinguish replacement from event appearance, recorded answer from inner explanation. Main 1999 experiment: 192 observers after 36 exclusions, 16 conditions, an event lasting 5 seconds; the aggregate 54% is not gorilla-only. James is historical; catalogue invented. Voluntary practice has no established efficacy.
Sources
- The Principles of Psychology I, XI, Attention — William James
Prior actual W14 XI15–30 read reused; current entire15–32 read with interest/selection and adjacent context. Only17/24 adopted.
Source use: UNKNOWN_FOR_SPECIFIC_FUTURE_PUBLICATION
- Failure to detect changes to people during a real-world interaction — Daniel J. Simons; Daniel T. Levin
Continuous full main text in three bounded displays, title/translators not applicable, copyright read; references displayed not cited works read.
Source use: COPYRIGHT_1998_PSYCHONOMIC_SOCIETY_OBSERVED; SPECIFIC_FUTURE_PUBLICATION_UNKNOWN
- Gorillas in our midst: sustained inattentional blindness for dynamic events — Daniel J. Simons; Christopher F. Chabris
Selected introductory context plus continuous complete current-study methods/results/discussion actually read with outputs recovered in three displays. Review113–258 not fully read, cited primary works not independently read. Muni alternate InternalError not used.
Source use: UNKNOWN_FOR_SPECIFIC_FUTURE_PUBLICATION