| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| serial killers with brain abnormalities | 0.02 | 0.9 | 475 | 82 | 39 |
| serial | 1.17 | 0.2 | 5543 | 47 | 6 |
| killers | 1.42 | 1 | 7720 | 53 | 7 |
| with | 0.47 | 0.4 | 7274 | 52 | 4 |
| brain | 0.26 | 0.1 | 3378 | 49 | 5 |
| abnormalities | 1.9 | 0.3 | 7846 | 19 | 13 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| serial killers with brain abnormalities | 1.27 | 0.6 | 2391 | 23 |
| serial killers with brain injuries | 0.86 | 0.6 | 2083 | 73 |
| brain damage in serial killers | 1.49 | 0.8 | 2935 | 6 |
| serial killer brain damage | 1.28 | 0.6 | 136 | 99 |
| serial killers brain vs normal brain | 0.98 | 0.1 | 3091 | 26 |
| serial killers and their brain chemistry | 1.07 | 1 | 2117 | 22 |
| serial killers with traumatic brain injuries | 0.49 | 0.2 | 1984 | 70 |
| brain trauma and serial killers | 0.01 | 0.3 | 6136 | 54 |
| brains of serial killers | 0.5 | 0.3 | 4052 | 61 |
| studies on serial killers brains | 0.15 | 0.7 | 2968 | 35 |
| serial killers brain scans | 0.7 | 0.1 | 1404 | 94 |
| serial killer brain studies | 0.09 | 0.9 | 617 | 61 |
| serial killers with psychological disorders | 1.9 | 0.6 | 3797 | 44 |
| brain chemistry of a serial killer | 1.2 | 0.9 | 9808 | 9 |
| which serial killers brains were studied | 1.41 | 0.4 | 2294 | 1 |
| serial killer brain compared to normal | 1.03 | 0.9 | 7852 | 59 |
| neuroscience of serial killers | 0.62 | 0.6 | 4350 | 75 |
