Does erotic stimulus presentation design affect brain activation patterns? Event-related vs. blocked fMRI designs
<p>Abstract</p> <p>Background</p> <p>Existing brain imaging studies, investigating sexual arousal via the presentation of erotic pictures or film excerpts, have mainly used blocked designs with long stimulus presentation times.</p> <p>Methods</p> <p...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
BMC
2008-07-01
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| Series: | Behavioral and Brain Functions |
| Online Access: | http://www.behavioralandbrainfunctions.com/content/4/1/30 |
| _version_ | 1818565212623601664 |
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| author | Klemen Jane Vollstädt-Klein Sabine Bühler Mira Smolka Michael N |
| author_facet | Klemen Jane Vollstädt-Klein Sabine Bühler Mira Smolka Michael N |
| author_sort | Klemen Jane |
| collection | DOAJ |
| description | <p>Abstract</p> <p>Background</p> <p>Existing brain imaging studies, investigating sexual arousal via the presentation of erotic pictures or film excerpts, have mainly used blocked designs with long stimulus presentation times.</p> <p>Methods</p> <p>To clarify how experimental functional magnetic resonance imaging (fMRI) design affects stimulus-induced brain activity, we compared brief event-related presentation of erotic vs. neutral stimuli with blocked presentation in 10 male volunteers.</p> <p>Results</p> <p>Brain activation differed depending on design type in only 10% of the voxels showing task related brain activity. Differences between blocked and event-related stimulus presentation were found in occipitotemporal and temporal regions (Brodmann Area (BA) 19, 37, 48), parietal areas (BA 7, 40) and areas in the frontal lobe (BA 6, 44).</p> <p>Conclusion</p> <p>Our results suggest that event-related designs might be a potential alternative when the core interest is the detection of networks associated with immediate processing of erotic stimuli.</p> <p>Additionally, blocked, compared to event-related, stimulus presentation allows the emergence and detection of non-specific secondary processes, such as sustained attention, motor imagery and inhibition of sexual arousal.</p> |
| first_indexed | 2024-12-14T01:38:21Z |
| format | Article |
| id | doaj.art-75cc1c5a8f2e411899ef20256dc1e62e |
| institution | Directory Open Access Journal |
| issn | 1744-9081 |
| language | English |
| last_indexed | 2024-12-14T01:38:21Z |
| publishDate | 2008-07-01 |
| publisher | BMC |
| record_format | Article |
| series | Behavioral and Brain Functions |
| spelling | doaj.art-75cc1c5a8f2e411899ef20256dc1e62e2022-12-21T23:21:49ZengBMCBehavioral and Brain Functions1744-90812008-07-01413010.1186/1744-9081-4-30Does erotic stimulus presentation design affect brain activation patterns? Event-related vs. blocked fMRI designsKlemen JaneVollstädt-Klein SabineBühler MiraSmolka Michael N<p>Abstract</p> <p>Background</p> <p>Existing brain imaging studies, investigating sexual arousal via the presentation of erotic pictures or film excerpts, have mainly used blocked designs with long stimulus presentation times.</p> <p>Methods</p> <p>To clarify how experimental functional magnetic resonance imaging (fMRI) design affects stimulus-induced brain activity, we compared brief event-related presentation of erotic vs. neutral stimuli with blocked presentation in 10 male volunteers.</p> <p>Results</p> <p>Brain activation differed depending on design type in only 10% of the voxels showing task related brain activity. Differences between blocked and event-related stimulus presentation were found in occipitotemporal and temporal regions (Brodmann Area (BA) 19, 37, 48), parietal areas (BA 7, 40) and areas in the frontal lobe (BA 6, 44).</p> <p>Conclusion</p> <p>Our results suggest that event-related designs might be a potential alternative when the core interest is the detection of networks associated with immediate processing of erotic stimuli.</p> <p>Additionally, blocked, compared to event-related, stimulus presentation allows the emergence and detection of non-specific secondary processes, such as sustained attention, motor imagery and inhibition of sexual arousal.</p>http://www.behavioralandbrainfunctions.com/content/4/1/30 |
| spellingShingle | Klemen Jane Vollstädt-Klein Sabine Bühler Mira Smolka Michael N Does erotic stimulus presentation design affect brain activation patterns? Event-related vs. blocked fMRI designs Behavioral and Brain Functions |
| title | Does erotic stimulus presentation design affect brain activation patterns? Event-related vs. blocked fMRI designs |
| title_full | Does erotic stimulus presentation design affect brain activation patterns? Event-related vs. blocked fMRI designs |
| title_fullStr | Does erotic stimulus presentation design affect brain activation patterns? Event-related vs. blocked fMRI designs |
| title_full_unstemmed | Does erotic stimulus presentation design affect brain activation patterns? Event-related vs. blocked fMRI designs |
| title_short | Does erotic stimulus presentation design affect brain activation patterns? Event-related vs. blocked fMRI designs |
| title_sort | does erotic stimulus presentation design affect brain activation patterns event related vs blocked fmri designs |
| url | http://www.behavioralandbrainfunctions.com/content/4/1/30 |
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