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The present fMRI study examined the effect of emotional valence (positive vs. negative) on repetition suppression effects. Using a standard recognition memory task, 24 participants viewed line drawings of previously studied negative, positive, and neutral photos intermixed with novel line drawings. For each item, participants made an old\u2013new recognition judgment and a sure\u2013unsure confidence rating. Collapsed across valence, repetition suppression effects were found in ventral occipital-temporal cortex and frontal regions. Activity levels in the majority of these regions were not modulated by valence. However, repetition enhancement of the amygdala and ventral occipital-temporal cortex functional connectivity reflected nonconscious memory for negative items. In this study, valence had little effect on activation patterns but had a larger effect on functional connectivity patterns that were markers of nonconscious memory. Beyond memory and emotion, these findings are relevant to other cognitive and social neuroscientists that utilize fMRI repetition effects to investigate perception, attention, social cognition, and other forms of learning and memory.<\/jats:p>","DOI":"10.1162\/jocn_a_01049","type":"journal-article","created":{"date-parts":[[2016,9,27]],"date-time":"2016-09-27T16:44:30Z","timestamp":1474994670000},"page":"1933-1946","source":"Crossref","is-referenced-by-count":10,"title":["Repetition Enhancement of Amygdala and Visual Cortex Functional Connectivity Reflects Nonconscious Memory for Negative Visual Stimuli"],"prefix":"10.1162","volume":"28","author":[{"given":"Sarah M.","family":"Kark","sequence":"first","affiliation":[{"name":"Boston College, Chestnut Hill, MA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Scott D.","family":"Slotnick","sequence":"additional","affiliation":[{"name":"Boston College, Chestnut Hill, MA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Elizabeth A.","family":"Kensinger","sequence":"additional","affiliation":[{"name":"Boston College, Chestnut Hill, MA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"281","reference":[{"key":"R1","doi-asserted-by":"publisher","DOI":"10.1016\/S0306-4522(02)01001-1"},{"key":"R2","unstructured":"Benner, T., van der Kouwe, A. 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