Table 5.
Bi-directional conditioning experiment for short-term olfactory memory to Citronella smell in Anopheles gambiae females
| Association | Citronella/Normal blood | No Citronella/Normal blood | χ2 | P-value | ||
|---|---|---|---|---|---|---|
| Blood | Normal blood† | Salted blood† | Normal blood† | Salted blood† | - | - |
| Time (min) | n | n | n | n | ||
| 2 | 15 | 13 | 9 | 11 | 0.00 | 1.000 |
| 4 | 14 | 7.5 | 11 | 6 | 6.98 | 0.008 |
| 6 | 14 | 4.5 | 11 | 2.5 | 21.5 | < 0.001 |
| 8 | 8 | 2 | 12 | 6.5 | 9.55 | 0.002 |
| 10 | 5.5 | 2 | 7.5 | 1.5 | 11.64 | < 0.001 |
†The change in number of females on two blood feeders with contrasting bloodmeal quality (salted and normal blood) used as reinforcing stimuli associated with and without Citronella smell for bi-directional conditioning. The position of each feeder was alternated every 2 min (see methods for details). Significant results are in bold