Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2056603860', 'doi': 'https://doi.org/10.1073/pnas.1214240110', 'title': 'Human trichromacy revisited', 'display_name': 'Human trichromacy revisited', 'publication_year': 2012, 'publication_date': '2012-12-19', 'ids': {'openalex': 'https://openalex.org/W2056603860', 'doi': 'https://doi.org/10.1073/pnas.1214240110', 'mag': '2056603860', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/23256158', 'pmcid': 'https://www.ncbi.nlm.nih.gov/pmc/articles/3549098'}, 'language': 'en', 'primary_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1073/pnas.1214240110', 'pdf_url': 'https://www.pnas.org/content/pnas/110/3/E260.full.pdf', 'source': {'id': 'https://openalex.org/S125754415', 'display_name': 'Proceedings of the National Academy of Sciences', 'issn_l': '0027-8424', 'issn': ['0027-8424', '1091-6490'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320052', 'host_organization_name': 'National Academy of Sciences', 'host_organization_lineage': ['https://openalex.org/P4310320052'], 'host_organization_lineage_names': ['National Academy of Sciences'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref', 'pubmed'], 'open_access': {'is_oa': True, 'oa_status': 'bronze', 'oa_url': 'https://www.pnas.org/content/pnas/110/3/E260.full.pdf', 'any_repository_has_fulltext': True}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5020506700', 'display_name': 'Hiroshi Horiguchi', 'orcid': 'https://orcid.org/0000-0002-9536-5875'}, 'institutions': [{'id': 'https://openalex.org/I97018004', 'display_name': 'Stanford University', 'ror': 'https://ror.org/00f54p054', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I97018004']}, {'id': 'https://openalex.org/I115498069', 'display_name': 'Jikei University School of Medicine', 'ror': 'https://ror.org/039ygjf22', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I115498069']}], 'countries': ['JP', 'US'], 'is_corresponding': False, 'raw_author_name': 'Hiroshi Horiguchi', 'raw_affiliation_strings': ['Department of Ophthalmology, School of Medicine, Jikei University, Tokyo 105-8461, Japan; and', 'Psychology Department, Stanford University, Stanford, CA 94305;'], 'affiliations': [{'raw_affiliation_string': 'Psychology Department, Stanford University, Stanford, CA 94305;', 'institution_ids': ['https://openalex.org/I97018004']}, {'raw_affiliation_string': 'Department of Ophthalmology, School of Medicine, Jikei University, Tokyo 105-8461, Japan; and', 'institution_ids': ['https://openalex.org/I115498069']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5003436423', 'display_name': 'Jonathan Winawer', 'orcid': 'https://orcid.org/0000-0001-7475-5586'}, 'institutions': [{'id': 'https://openalex.org/I97018004', 'display_name': 'Stanford University', 'ror': 'https://ror.org/00f54p054', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I97018004']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Jonathan Winawer', 'raw_affiliation_strings': ['Psychology Department, Stanford University, Stanford, CA 94305;'], 'affiliations': [{'raw_affiliation_string': 'Psychology Department, Stanford University, Stanford, CA 94305;', 'institution_ids': ['https://openalex.org/I97018004']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5049315614', 'display_name': 'Robert F. Dougherty', 'orcid': 'https://orcid.org/0000-0002-1254-5943'}, 'institutions': [{'id': 'https://openalex.org/I4210137306', 'display_name': 'Stanford Medicine', 'ror': 'https://ror.org/03mtd9a03', 'country_code': 'US', 'type': 'healthcare', 'lineage': ['https://openalex.org/I4210137306', 'https://openalex.org/I97018004']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Robert F. Dougherty', 'raw_affiliation_strings': ['Stanford Center for Cognitive and Neurobiological Imaging, Stanford, CA 94305'], 'affiliations': [{'raw_affiliation_string': 'Stanford Center for Cognitive and Neurobiological Imaging, Stanford, CA 94305', 'institution_ids': ['https://openalex.org/I4210137306']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5074011246', 'display_name': 'Brian A. Wandell', 'orcid': 'https://orcid.org/0000-0002-2974-1836'}, 'institutions': [{'id': 'https://openalex.org/I4210137306', 'display_name': 'Stanford Medicine', 'ror': 'https://ror.org/03mtd9a03', 'country_code': 'US', 'type': 'healthcare', 'lineage': ['https://openalex.org/I4210137306', 'https://openalex.org/I97018004']}, {'id': 'https://openalex.org/I97018004', 'display_name': 'Stanford University', 'ror': 'https://ror.org/00f54p054', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I97018004']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Brian A. Wandell', 'raw_affiliation_strings': ['Psychology Department, Stanford University, Stanford, CA 94305;', 'Stanford Center for Cognitive and Neurobiological Imaging, Stanford, CA 94305'], 'affiliations': [{'raw_affiliation_string': 'Stanford Center for Cognitive and Neurobiological Imaging, Stanford, CA 94305', 'institution_ids': ['https://openalex.org/I4210137306']}, {'raw_affiliation_string': 'Psychology Department, Stanford University, Stanford, CA 94305;', 'institution_ids': ['https://openalex.org/I97018004']}]}], 'countries_distinct_count': 2, 'institutions_distinct_count': 3, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 2.005, 'has_fulltext': True, 'fulltext_origin': 'pdf', 'cited_by_count': 73, 'citation_normalized_percentile': {'value': 0.873263, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 97, 'max': 98}, 'biblio': {'volume': '110', 'issue': '3', 'first_page': None, 'last_page': None}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10342', 'display_name': 'Mammalian Circadian Rhythms and Physiology', 'score': 0.9991, 'subfield': {'id': 'https://openalex.org/subfields/2807', 'display_name': 'Endocrine and Autonomic Systems'}, 'field': {'id': 'https://openalex.org/fields/28', 'display_name': 'Neuroscience'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, 'topics': [{'id': 'https://openalex.org/T10342', 'display_name': 'Mammalian Circadian Rhythms and Physiology', 'score': 0.9991, 'subfield': {'id': 'https://openalex.org/subfields/2807', 'display_name': 'Endocrine and Autonomic Systems'}, 'field': {'id': 'https://openalex.org/fields/28', 'display_name': 'Neuroscience'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, {'id': 'https://openalex.org/T10971', 'display_name': 'Olfactory Dysfunction in Health and Disease', 'score': 0.9936, 'subfield': {'id': 'https://openalex.org/subfields/2809', 'display_name': 'Sensory Systems'}, 'field': {'id': 'https://openalex.org/fields/28', 'display_name': 'Neuroscience'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, {'id': 'https://openalex.org/T12236', 'display_name': 'Optogenetics in Neuroscience and Biophysics Research', 'score': 0.993, 'subfield': {'id': 'https://openalex.org/subfields/2804', 'display_name': 'Cellular and Molecular Neuroscience'}, 'field': {'id': 'https://openalex.org/fields/28', 'display_name': 'Neuroscience'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/melanopsin', 'display_name': 'Melanopsin', 'score': 0.9748529}, {'id': 'https://openalex.org/keywords/trichromacy', 'display_name': 'Trichromacy', 'score': 0.89337623}, {'id': 'https://openalex.org/keywords/sensory-rhodopsin', 'display_name': 'Sensory Rhodopsin', 'score': 0.51147}, {'id': 'https://openalex.org/keywords/camouflage', 'display_name': 'Camouflage', 'score': 0.4242}], 'concepts': [{'id': 'https://openalex.org/C189780591', 'wikidata': 'https://www.wikidata.org/wiki/Q7187882', 'display_name': 'Photopigment', 'level': 3, 'score': 0.98143005}, {'id': 'https://openalex.org/C3449773', 'wikidata': 'https://www.wikidata.org/wiki/Q92594', 'display_name': 'Melanopsin', 'level': 4, 'score': 0.9748529}, {'id': 'https://openalex.org/C113016886', 'wikidata': 'https://www.wikidata.org/wiki/Q1317719', 'display_name': 'Trichromacy', 'level': 3, 'score': 0.89337623}, {'id': 'https://openalex.org/C54497739', 'wikidata': 'https://www.wikidata.org/wiki/Q1474732', 'display_name': 'Photopic vision', 'level': 3, 'score': 0.79375714}, {'id': 'https://openalex.org/C38137364', 'wikidata': 'https://www.wikidata.org/wiki/Q934475', 'display_name': 'Intrinsically photosensitive retinal ganglion cells', 'level': 4, 'score': 0.7114832}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.5579643}, {'id': 'https://openalex.org/C61674017', 'wikidata': 'https://www.wikidata.org/wiki/Q374259', 'display_name': 'Color vision', 'level': 2, 'score': 0.49844837}, {'id': 'https://openalex.org/C2776196576', 'wikidata': 'https://www.wikidata.org/wiki/Q196113', 'display_name': 'Camouflage', 'level': 2, 'score': 0.4242}, {'id': 'https://openalex.org/C120665830', 'wikidata': 'https://www.wikidata.org/wiki/Q14620', 'display_name': 'Optics', 'level': 1, 'score': 0.37392002}, {'id': 'https://openalex.org/C169760540', 'wikidata': 'https://www.wikidata.org/wiki/Q207011', 'display_name': 'Neuroscience', 'level': 1, 'score': 0.35215914}, {'id': 'https://openalex.org/C2777093970', 'wikidata': 'https://www.wikidata.org/wiki/Q169342', 'display_name': 'Retina', 'level': 2, 'score': 0.32500505}, {'id': 'https://openalex.org/C121332964', 'wikidata': 'https://www.wikidata.org/wiki/Q413', 'display_name': 'Physics', 'level': 0, 'score': 0.26354182}, {'id': 'https://openalex.org/C90856448', 'wikidata': 'https://www.wikidata.org/wiki/Q431', 'display_name': 'Zoology', 'level': 1, 'score': 0.16169477}, {'id': 'https://openalex.org/C2777624874', 'wikidata': 'https://www.wikidata.org/wiki/Q927337', 'display_name': 'Retinal ganglion cell', 'level': 3, 'score': 0.0}], 'mesh': [{'descriptor_ui': 'D055253', 'descriptor_name': 'Color Vision', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': True}, {'descriptor_ui': 'D008954', 'descriptor_name': 'Models, Biological', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': True}, {'descriptor_ui': 'D000328', 'descriptor_name': 'Adult', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D055253', 'descriptor_name': 'Color Vision', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D005260', 'descriptor_name': 'Female', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D005584', 'descriptor_name': 'Fovea Centralis', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': False}, {'descriptor_ui': 'D005584', 'descriptor_name': 'Fovea Centralis', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D006801', 'descriptor_name': 'Humans', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D008297', 'descriptor_name': 'Male', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D055620', 'descriptor_name': 'Optical Phenomena', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D010775', 'descriptor_name': 'Photic Stimulation', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D012160', 'descriptor_name': 'Retina', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D012160', 'descriptor_name': 'Retina', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': False}, {'descriptor_ui': 'D017949', 'descriptor_name': 'Retinal Cone Photoreceptor Cells', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': False}, {'descriptor_ui': 'D017949', 'descriptor_name': 'Retinal Cone Photoreceptor Cells', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D012168', 'descriptor_name': 'Retinal Pigments', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': False}, {'descriptor_ui': 'D012168', 'descriptor_name': 'Retinal Pigments', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D017948', 'descriptor_name': 'Retinal Rod Photoreceptor Cells', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': False}, {'descriptor_ui': 'D017948', 'descriptor_name': 'Retinal Rod Photoreceptor Cells', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D017299', 'descriptor_name': 'Rod Opsins', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': False}, {'descriptor_ui': 'D017299', 'descriptor_name': 'Rod Opsins', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}], 'locations_count': 4, 'locations': [{'is_oa': True, 'landing_page_url': 'https://doi.org/10.1073/pnas.1214240110', 'pdf_url': 'https://www.pnas.org/content/pnas/110/3/E260.full.pdf', 'source': {'id': 'https://openalex.org/S125754415', 'display_name': 'Proceedings of the National Academy of Sciences', 'issn_l': '0027-8424', 'issn': ['0027-8424', '1091-6490'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320052', 'host_organization_name': 'National Academy of Sciences', 'host_organization_lineage': ['https://openalex.org/P4310320052'], 'host_organization_lineage_names': ['National Academy of Sciences'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': True, 'landing_page_url': 'https://europepmc.org/articles/pmc3549098', 'pdf_url': 'https://europepmc.org/articles/pmc3549098?pdf=render', 'source': {'id': 'https://openalex.org/S4306400806', 'display_name': 'Europe PMC (PubMed Central)', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I1303153112', 'host_organization_name': 'European Bioinformatics Institute', 'host_organization_lineage': ['https://openalex.org/I1303153112'], 'host_organization_lineage_names': ['European Bioinformatics Institute'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': True, 'landing_page_url': 'https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3549098', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S2764455111', 'display_name': 'PubMed Central', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I1299303238', 'host_organization_name': 'National Institutes of Health', 'host_organization_lineage': ['https://openalex.org/I1299303238'], 'host_organization_lineage_names': ['National Institutes of Health'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': False, 'landing_page_url': 'https://pubmed.ncbi.nlm.nih.gov/23256158', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4306525036', 'display_name': 'PubMed', 'issn_l': None, 'issn': None, 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I1299303238', 'host_organization_name': 'National Institutes of Health', 'host_organization_lineage': ['https://openalex.org/I1299303238'], 'host_organization_lineage_names': ['National Institutes of Health'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1073/pnas.1214240110', 'pdf_url': 'https://www.pnas.org/content/pnas/110/3/E260.full.pdf', 'source': {'id': 'https://openalex.org/S125754415', 'display_name': 'Proceedings of the National Academy of Sciences', 'issn_l': '0027-8424', 'issn': ['0027-8424', '1091-6490'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320052', 'host_organization_name': 'National Academy of Sciences', 'host_organization_lineage': ['https://openalex.org/P4310320052'], 'host_organization_lineage_names': ['National Academy of Sciences'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'sustainable_development_goals': [], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 57, 'referenced_works': ['https://openalex.org/W1528768086', 'https://openalex.org/W1577290027', 'https://openalex.org/W1622427076', 'https://openalex.org/W167412706', 'https://openalex.org/W195326144', 'https://openalex.org/W1964405752', 'https://openalex.org/W1971254250', 'https://openalex.org/W1974005424', 'https://openalex.org/W1977849714', 'https://openalex.org/W1979926021', 'https://openalex.org/W1980419634', 'https://openalex.org/W1980652986', 'https://openalex.org/W1987079191', 'https://openalex.org/W1987557393', 'https://openalex.org/W1998330345', 'https://openalex.org/W1999927891', 'https://openalex.org/W2000240431', 'https://openalex.org/W2000674655', 'https://openalex.org/W2003128483', 'https://openalex.org/W2009077913', 'https://openalex.org/W2013870510', 'https://openalex.org/W2024934745', 'https://openalex.org/W2026453228', 'https://openalex.org/W2031911867', 'https://openalex.org/W2035853180', 'https://openalex.org/W2036239753', 'https://openalex.org/W2041345388', 'https://openalex.org/W2042900296', 'https://openalex.org/W2059610474', 'https://openalex.org/W2064995753', 'https://openalex.org/W2070364586', 'https://openalex.org/W2071710392', 'https://openalex.org/W2072018453', 'https://openalex.org/W2078666698', 'https://openalex.org/W2078998699', 'https://openalex.org/W2090948255', 'https://openalex.org/W2092510003', 'https://openalex.org/W2092767772', 'https://openalex.org/W2093675746', 'https://openalex.org/W2093680221', 'https://openalex.org/W2093926336', 'https://openalex.org/W2096819253', 'https://openalex.org/W2098702533', 'https://openalex.org/W2108992228', 'https://openalex.org/W2112295911', 'https://openalex.org/W2118562793', 'https://openalex.org/W2121990302', 'https://openalex.org/W2125455313', 'https://openalex.org/W2126201948', 'https://openalex.org/W2130524075', 'https://openalex.org/W2140164635', 'https://openalex.org/W2150393607', 'https://openalex.org/W2151131721', 'https://openalex.org/W2165727733', 'https://openalex.org/W2568842486', 'https://openalex.org/W32101920', 'https://openalex.org/W869089043'], 'related_works': ['https://openalex.org/W4237994787', 'https://openalex.org/W2902118379', 'https://openalex.org/W2160097268', 'https://openalex.org/W2118673846', 'https://openalex.org/W2056603860', 'https://openalex.org/W2053541393', 'https://openalex.org/W2052588363', 'https://openalex.org/W1989616930', 'https://openalex.org/W1986796916', 'https://openalex.org/W1211361099'], 'abstract_inverted_index': {'The': [0, 138], 'presence': [1], 'of': [2, 123], 'a': [3, 12, 88, 121], 'photopigment': [4, 117], '(melanopsin)': [5], 'within': [6], 'certain': [7], 'retinal': [8], 'ganglion': [9], 'cells': [10], 'was': [11], 'surprising': [13], 'and': [14, 32], 'significant': [15], 'discovery.': [16], 'This': [17], 'pigment': [18], 'is': [19, 96, 109, 142], 'routinely': [20], 'described': [21], 'as': [22], '"nonvisual"': [23], 'to': [24, 69, 86, 125], 'highlight': [25], 'its': [26], 'signaling': [27], 'role': [28], 'in': [29, 75, 113, 133, 144], 'pupil': [30], 'dilation': [31], 'circadian': [33], 'rhythms.': [34], 'Here': [35], 'we': [36], 'asked': [37], 'whether': [38], 'light': [39], 'absorbed': [40], 'by': [41, 46, 80, 111], 'melanopsin': [42, 95, 148], 'can': [43], 'be': [44], 'seen': [45], 'healthy': [47, 145], 'human': [48, 135, 146], 'subjects.': [49], 'To': [50], 'answer': [51], 'this': [52], 'requires': [53], 'delivering': [54], 'intense': [55], '(above': [56], 'rod': [57], 'saturation),': [58], 'well-controlled': [59], 'lights': [60], 'using': [61], 'four': [62], 'independent': [63], 'primaries.': [64], 'We': [65, 119], 'collected': [66], 'detection': [67], 'thresholds': [68], 'many': [70], 'four-primary': [71], 'stimuli.': [72], 'Threshold': [73], 'measurements': [74, 99], 'the': [76, 92, 127, 134], 'fovea': [77], 'are': [78], 'explained': [79, 110], 'trichromatic': [81, 102], 'theory,': [82], 'with': [83], 'no': [84], 'need': [85], 'invoke': [87], 'fourth': [89], 'photopigment.': [90], 'In': [91], 'periphery,': [93], 'where': [94], 'present,': [97], 'threshold': [98], 'deviate': [100], 'from': [101], 'theory;': [103], 'at': [104, 129], 'high': [105, 130], 'photopic': [106, 131], 'levels,': [107], 'sensitivity': [108], 'absorptions': [112, 149], 'four,': [114], 'not': [115], 'three,': [116], 'classes.': [118], 'consider': [120], 'series': [122], 'hypotheses': [124], 'explain': [126], 'tetrasensitivity': [128], 'levels': [132], 'peripheral': [136], 'field.': [137], 'most': [139], 'likely': [140], 'hypothesis': [141], 'that': [143], 'subjects': [147], 'influence': [150], 'visibility.': [151]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2056603860', 'counts_by_year': [{'year': 2024, 'cited_by_count': 7}, {'year': 2023, 'cited_by_count': 6}, {'year': 2022, 'cited_by_count': 11}, {'year': 2021, 'cited_by_count': 6}, {'year': 2020, 'cited_by_count': 7}, {'year': 2019, 'cited_by_count': 7}, {'year': 2018, 'cited_by_count': 5}, {'year': 2017, 'cited_by_count': 4}, {'year': 2016, 'cited_by_count': 5}, {'year': 2015, 'cited_by_count': 9}, {'year': 2014, 'cited_by_count': 3}, {'year': 2013, 'cited_by_count': 3}], 'updated_date': '2024-08-13T21:57:24.811324', 'created_date': '2016-06-24'}