Table 1.
Comparing Positive and Negative BOLD Signal*
| Positive BOLD signal
|
Negative BOLD signal
|
Between
|
Within
|
|||||
|---|---|---|---|---|---|---|---|---|
| Area | Ovulate | OVX | Ovulate | OVX | Positive | Negative | Ovulate | Ovx |
| Prefrontal cortex (16) | 9.4 ± .87 | 6.5 ± .82 | 9.8 ± 1.0 | 10.4 ± 1.0 | .05 | NS | NS | .01 |
| Temporal cortex (52) | 10.0 ± .80 | 5.7 ± .49 | 8.2 ± .86 | 12.5 ± 1.0 | .001 | .001 | NS | .01 |
| Somatosensory (12) | 10.2 ± 1.9 | 5.7 ± 1.5 | 5.4 ± 1.0 | 7.6 ± 1.5 | .05 | NS | .05 | NS |
| Insular cortex (24) | 4.4 ± .54 | 1.6 ± .39 | 3.4 ± .67 | 5.2 ± .76 | .001 | NS | NS | .001 |
| Cingulate cortex (30) | 8.9 ± .88 | 5.4 ± .61 | 7.8 ± .98 | 10.8 ± 1.1 | .001 | .05 | NS | .001 |
| Caudate (22) | 4.6 ± .67 | 2.4 ± .43 | 2.9 ± .66 | 4.4 ± .61 | .01 | NS | NS | .01 |
| Putamen (22) | 4.7 ± .72 | 1.9 ± .44 | 3.5 ± .68 | 6.3 ± .76 | .005 | .05 | NS | .001 |
| Substantia nigra (12) | 2.8 ± .67 | 2.0 ± .49 | 1.7 ± .50 | 3.5 ± .89 | NS | .01 | NS | NS |
| Dorsal thalamus (12) | 2.1 ± .34 | 2.5 ± .74 | 2.4 ± .54 | 3.1 ± .53 | NS | NS | NS | NS |
| Midline thalamus (12) | 2.2 ± .54 | 2.0 ± .77 | 2.1 ± .79 | 3.8 ± 1.3 | NS | NS | NS | NS |
| Amygdala (20) | 5.0 ± .99 | 4.4 ± .90 | 4.9 ± 1.0 | 8.2 ± 1.9 | NS | NS | NS | NS |
| Hippocampus (24) | 11.5 ± 1.6 | 6.9 ± 1.0 | 9.1 ± 1.5 | 13.7 ± 1.9 | .001 | .01 | NS | .01 |
| Septum (6) | 6.3 ± 1.5 | 2.3 ± .76 | 3.0 ± .93 | 6.3 ± 1.4 | .05 | NS | NS | .05 |
| Olfact. tubercle (12) | 3.2 ± .83 | 3.0 ± .89 | 2.9 ± .76 | 1.6 ± .35 | NS | NS | NS | NS |
| Medial preoptic (6) | 9.5 ± 2.8 | 4.0 ± 1.4 | 2.6 ± 1.7 | 7.0 ± .68 | .05 | .05 | .05 | NS |
| Anterior hypo. (6) | 12.0 ± .33 | 3.1 ± .74 | 5.1 ± 2.2 | 6.6 ± .55 | .05 | NS | NS | .01 |
| Periaqueductal (6) | 4.1 ± .79 | 2.0 ± .51 | 3.1 ± .74 | 5.8 ± 2.5 | .05 | NS | .05 | NS |
| Raphe nucleus (7) | 1.4 ± .36 | 4.4 ± .97 | 2.8 ± 1.1 | 1.1 ± .50 | .05 | NS | NS | .01 |
| Cerebellum (6) | 40.0 ± 5.1 | 18.0 ± 1.0 | 41 ± 9.8 | 65 ± 13 | .05 | .05 | NS | .01 |
| Sup. colliculus (12) | 2.4 ± .65 | 1.6 ± .33 | 2.9 ± .62 | 3.4 ± .7 | NS | NS | NS | .05 |
| Inf. Colliculus (12) | 3.2 ± .39 | 2.2 ± .78 | 3.0 ± .52 | 5.2 ± .76 | NS | NS | NS | .05 |
*
Mean ± SEM number of voxels activated relative to baseline in response to ovulatory odors and odors of ovariectomized (OVX) females in selected regions of interest. P-values for differences between responses to ovulate odors and OVX odors in both positive and negative BOLD signals are indicated under “Between.” Differences between positive and negative BOLD responses within each stimulus are shown under “Within.”