{'fraction_non_alphanumeric': 0.01875, 'fraction_numerical': 0.01625, 'mean_word_length': 5.459677419354839, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Neuro 230 Visual Object Recognition Hw1 Comments on Speed of Processing in the Human Visual System. Nature (1996)

This paper gave an estimate of processing time for fast visual categorization of animals. While subjects were asked to decide whether a 20-msec flashed natural photograph contains an animal, differential event-related potential (ERP) activity between target trials and distractor trials was observed in frontal recording sites at around 150 msec after stimulus onset. The authors thus claimed that this differential response should rise once necessary visual processing has been completed, and that such rapid visual categorization could mainly rely on feedforward mechanisms. These claims, however, are arguable due to the following issues in their hypothesis and experimental design.