Awareness of Emotional Expressions in Cannabis Users: An Event-Related Potential Study
Cannabis use has been associated with anxiogenic effects when used in low frequency for a short duration, but cannabis can also have anxiogenic effects when used heavily for a long duration. Animal studies have indicated the neurobiological mechanisms related to cannabis and anxiety; however, resear...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2019-02-01
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| Series: | Frontiers in Psychology |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/article/10.3389/fpsyg.2019.00069/full |
| _version_ | 1819045030899220480 |
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| author | Robert D. Torrence Donald C. Rojas Lucy J. Troup |
| author_facet | Robert D. Torrence Donald C. Rojas Lucy J. Troup |
| author_sort | Robert D. Torrence |
| collection | DOAJ |
| description | Cannabis use has been associated with anxiogenic effects when used in low frequency for a short duration, but cannabis can also have anxiogenic effects when used heavily for a long duration. Animal studies have indicated the neurobiological mechanisms related to cannabis and anxiety; however, research has been limited on the related neurocognitive mechanisms. Previous research has indicated that cannabis use is associated with alterations in event-related potentials (ERPs). The purpose of the current study was to examine anxiety related attentional processing of emotional expressions using ERP methods. We used a backward masking paradigm to restrict awareness of facial expressions (i.e., fearful, happy, and neutral). The results indicated that cannabis use was associated with differences in emotional processing. Specifically, the results suggested cannabis users had increased P1 amplitudes toward happy facial expressions compared to fearful and neutral. Additionally, cannabis users seemed to have reduced N170 hemisphere lateralization. |
| first_indexed | 2024-12-21T10:22:06Z |
| format | Article |
| id | doaj.art-0b36e137d61e441bb524469d0e5631c5 |
| institution | Directory Open Access Journal |
| issn | 1664-1078 |
| language | English |
| last_indexed | 2024-12-21T10:22:06Z |
| publishDate | 2019-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Psychology |
| spelling | doaj.art-0b36e137d61e441bb524469d0e5631c52022-12-21T19:07:25ZengFrontiers Media S.A.Frontiers in Psychology1664-10782019-02-011010.3389/fpsyg.2019.00069423213Awareness of Emotional Expressions in Cannabis Users: An Event-Related Potential StudyRobert D. Torrence0Donald C. Rojas1Lucy J. Troup2Department of Pharmacy Practice, Wayne State University, Detroit, MI, United StatesDepartment of Psychology, Colorado State University, Fort Collins, CO, United StatesStrategic Hub for Psychology, Social Work, Health Behaviours and Addictions, University of the West of Scotland, Paisley, ScotlandCannabis use has been associated with anxiogenic effects when used in low frequency for a short duration, but cannabis can also have anxiogenic effects when used heavily for a long duration. Animal studies have indicated the neurobiological mechanisms related to cannabis and anxiety; however, research has been limited on the related neurocognitive mechanisms. Previous research has indicated that cannabis use is associated with alterations in event-related potentials (ERPs). The purpose of the current study was to examine anxiety related attentional processing of emotional expressions using ERP methods. We used a backward masking paradigm to restrict awareness of facial expressions (i.e., fearful, happy, and neutral). The results indicated that cannabis use was associated with differences in emotional processing. Specifically, the results suggested cannabis users had increased P1 amplitudes toward happy facial expressions compared to fearful and neutral. Additionally, cannabis users seemed to have reduced N170 hemisphere lateralization.https://www.frontiersin.org/article/10.3389/fpsyg.2019.00069/fullcannabisERPemotionfacial expressionawareness |
| spellingShingle | Robert D. Torrence Donald C. Rojas Lucy J. Troup Awareness of Emotional Expressions in Cannabis Users: An Event-Related Potential Study Frontiers in Psychology cannabis ERP emotion facial expression awareness |
| title | Awareness of Emotional Expressions in Cannabis Users: An Event-Related Potential Study |
| title_full | Awareness of Emotional Expressions in Cannabis Users: An Event-Related Potential Study |
| title_fullStr | Awareness of Emotional Expressions in Cannabis Users: An Event-Related Potential Study |
| title_full_unstemmed | Awareness of Emotional Expressions in Cannabis Users: An Event-Related Potential Study |
| title_short | Awareness of Emotional Expressions in Cannabis Users: An Event-Related Potential Study |
| title_sort | awareness of emotional expressions in cannabis users an event related potential study |
| topic | cannabis ERP emotion facial expression awareness |
| url | https://www.frontiersin.org/article/10.3389/fpsyg.2019.00069/full |
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