Pathokinesis

"Jasper has the ability to both feel and manipulate the emotions of those around him."

- Entry on Jasper's gift

Pathokinesis is Jasper Hale's ability to sense and change the aura around a person so their emotion is altered.

Description
A vampire with this ability can sense the feelings of others and alter them according to his will. With it, Jasper can resolve a tense situation peacefully or, (like Chelsea with her gift) make people coexist more easily, as Jasper did with his newborn army. It can also be used to enlighten someone's mood. It is said that Jasper feels horrible because he could feel Edward's negative emotions when he tried to attack Bella in New Moon.

He can also manipulate the level of intensity people feel emotions, as shown when Jasper calmed Bella so much that she fell asleep in Twilight.

This power can work potently through a mental shield because it physically changes the emotions i.e. manipulating endorphins, adrenaline and pheromones instead of providing a false alarm to the mind.

In the New Moon film, he changes Bella's mood to make her agree to attend her own 18th birthday party that Alice had planned for her. Bella moans at Jasper for the mood change, to which Jasper, Edward and Alice laugh.

In Eclipse, Bella mentioned not being able to tell if Jasper was making the atmosphere tense or whether she was just feeling it. He helped resolve a tight situation caused by Paul, Emmett and Rosalie.

In Breaking Dawn, Jasper is also at Bella's side after she became a newborn, initially to change her mood in case something upset her. Later, he feels her endlessly happy mood, which makes him gravitate toward her without thinking.

Limitations
This ability is limited, as shown in Breaking Dawn, when Jasper and Emmett come to Bella's house to take Edward for a "bachelor party". Jasper reassures Bella with his power (or rather takes away her insecurity at the idea), but as they leave, she states she felt her calm slipping away. This shows that the emotion lasts only as long as the user is around. This limitation was also explained in Eclipse, when Jacob told Bella that Jasper got rid of everyone's anger, which did not resurface until after he was gone.

Pathokinesis seems to behave much like a sense, therefore Jasper does not appear to have much control over it, neither in its sensorial nor in its manipulative aspect.

Origins
Jasper was quite charismatic as a human - he could make others view things his way. When he became a vampire, this charisma changed into a power.

Similar abilities

 * This power is similar to Didyme's happiness induction, although it was limited to spreading joy while Jasper can inflict any emotion he wishes.


 * It is also somewhat similar to Chelsea's ability to manipulate relationships, though she can bind them permanently.


 * Fred's gift of physical repulsion is similar to Jasper's in the sense that he can change the way someone feels, physically. Though, like Didyme, it is limited to only one emotion: repulsion.


 * Corin also possesses a talent similar to Jasper's, though she can only create a feeling of contentment in others.