Previous research has yielded inconsistent results regarding the effects of caffeine on memory. Such inconsistency is likely to a large extent a function of the complex interaction effects of caffeine and other variables such as estrogen. The purpose of the present study was to discern possible variation in the effects of caffeine on the recall of prose for females tested during days 1-5 or 9-13 of their menstrual cycle. One hundred and seven subjects received either O mg/kg, 2 mg/kg, or 4 mg/kg of caffeine. Following an absorption period, subjects read six passages from a computer terminal and immediately afterwards, wrote their recall of each passage. The primary result of the present study is that overall, caffeine facilitated recall performance. Although a marginal interaction involving phase of menstrual cycle was demonstrated, contrary to what was expected, no significant effects were revealed. Results of the present study are discussed in the context of previous research, and possible explanations regarding the lack of significant effects of phase of menstrual cycle are offered.
","abstract_html":"<p>Previous research has yielded inconsistent results regarding the effects of caffeine on memory. Such inconsistency is likely to a large extent a function of the complex interaction effects of caffeine and other variables such as estrogen. The purpose of the present study was to discern possible variation in the effects of caffeine on the recall of prose for females tested during days 1-5 or 9-13 of their menstrual cycle. One hundred and seven subjects received either O mg/kg, 2 mg/kg, or 4 mg/kg of caffeine. Following an absorption period, subjects read six passages from a computer terminal and immediately afterwards, wrote their recall of each passage. The primary result of the present study is that overall, caffeine facilitated recall performance. Although a marginal interaction involving phase of menstrual cycle was demonstrated, contrary to what was expected, no significant effects were revealed. Results of the present study are discussed in the context of previous research, and possible explanations regarding the lack of significant effects of phase of menstrual cycle are offered.</p>","abstract_has_math":false,"creators":["McPherson, Jacqueline Marie"],"institution":null,"degree_name":"Doctor of Philosophy (PhD)","degree_level":"Dissertation","degree_discipline":"Psychology","degree_department":null,"school":null,"contributors":["Dr. Thomas Petros"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1995,"date_issued":"1995-08-01T07:00:00Z","date_published":"1995-08-01T07:00:00Z","updated_at":"2026-07-24T03:25:37Z","subjects":["Caffeine","physiological effect","menstrual cycle","recollection","Psychology"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://commons.und.edu/theses/698","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Dr. Thomas Petros"]},{"key":"dc:creator","label":"Author","values":["McPherson, Jacqueline Marie"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.available","label":"Dc Date Available","values":["2018-08-23T07:00:00Z"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Psychology"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Doctor of Philosophy (PhD)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Caffeine","physiological effect","menstrual cycle","recollection","Psychology"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://commons.und.edu/theses/698"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Previous research has yielded inconsistent results regarding the effects of caffeine on memory. Such inconsistency is likely to a large extent a function of the complex interaction effects of caffeine and other variables such as estrogen. The purpose of the present study was to discern possible variation in the effects of caffeine on the recall of prose for females tested during days 1-5 or 9-13 of their menstrual cycle. One hundred and seven subjects received either O mg/kg, 2 mg/kg, or 4 mg/kg of caffeine. Following an absorption period, subjects read six passages from a computer terminal and immediately afterwards, wrote their recall of each passage. The primary result of the present study is that overall, caffeine facilitated recall performance. Although a marginal interaction involving phase of menstrual cycle was demonstrated, contrary to what was expected, no significant effects were revealed. Results of the present study are discussed in the context of previous research, and possible explanations regarding the lack of significant effects of phase of menstrual cycle are offered.
"]},{"key":"dc:title","label":"Title","values":["The Interactive Effects of Caffeine and Phase of Menstrual Cycle on the Recall of Prose Passages"]}]}],"canonical_facts":{"dc:contributor":["Dr. Thomas Petros"],"dc:creator":["McPherson, Jacqueline Marie"],"dc:date.available":["2018-08-23T07:00:00Z"],"dc:description.abstract":["Previous research has yielded inconsistent results regarding the effects of caffeine on memory. Such inconsistency is likely to a large extent a function of the complex interaction effects of caffeine and other variables such as estrogen. The purpose of the present study was to discern possible variation in the effects of caffeine on the recall of prose for females tested during days 1-5 or 9-13 of their menstrual cycle. One hundred and seven subjects received either O mg/kg, 2 mg/kg, or 4 mg/kg of caffeine. Following an absorption period, subjects read six passages from a computer terminal and immediately afterwards, wrote their recall of each passage. The primary result of the present study is that overall, caffeine facilitated recall performance. Although a marginal interaction involving phase of menstrual cycle was demonstrated, contrary to what was expected, no significant effects were revealed. Results of the present study are discussed in the context of previous research, and possible explanations regarding the lack of significant effects of phase of menstrual cycle are offered.
"],"dc:identifier":["https://commons.und.edu/theses/698"],"dc:subject":["Caffeine","physiological effect","menstrual cycle","recollection","Psychology"],"dc:title":["The Interactive Effects of Caffeine and Phase of Menstrual Cycle on the Recall of Prose Passages"],"thesis:degree_discipline":["Psychology"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Doctor of Philosophy (PhD)"]},"updated_at":"2026-07-24T03:25:37Z"}