It has been argued that the observed core density profile of galaxies is inconsistent with having a dark matter particle that is collisionless and alternative dark matter candidates which are self interacting may explain observations better. One new class of self interacting dark matter that has been proposed in the context mirror universe models of particle physics is the mirror hydrogen atom ...

Young children often make mirror errors when learning to read and write, for instance writing their first name from right to left in English. This competence vanishes in most adult readers, who typically cannot read mirror words but retain a strong competence for mirror recognition of images. We used fast behavioral and fMRI repetition priming to probe the brain mechanisms underlying mirror gen...

The physics of kinetic mixing between ordinary and mirror photons is elucidated. An important role is played by four linear combinations we dub the physical photon, the sterile photon, the physical mirror photon, and the sterile mirror photon. Because of the mass degeneracy between the two gauge bosons, quantum coherence effects are important. The physical photon becomes a certain coherent supe...

At early stages of object identification we process correctly oriented and mirrored versions of an object similarly. However, in letter and word perception, such tolerance to mirror reversals is harmful for efficient reading. Do readers successfully develop blindness mechanisms for mirror-letters and words? We conducted two masked priming experiments while recording participants' electrophysiol...

A new current mirror structure using a nonrectangular dual-drain device with a shared channel to reduce the matching sensitivity to linear parameter gradients is introduced. The new structures are compared with conventional common centroid layouts for threshold voltage gradients at all angles across the active area of a mirror. Results show that in some applications, significant improvement in ...

Our environment offers us a number of opportunities for action. However, sometimes we also have to refrain from acting, for example, when facing a "do not touch" sign placed over a desirable object on the shelf of a shop. Previous findings emphasized the role of mesial frontal and prefrontal regions in the inhibition of stimulus-driven motor responses [1-3], leading to the prediction that motor...

All interpersonal interactions are underpinned by action: perceiving and understanding the actions of others, and responding by planning and performing self-made actions. Perception of action, both self-made and observed, informs ongoing motor responses by iterative feedback within a perception-action loop. This fundamental phenomenon occurs within single-cells of the macaque brain which demons...

Converging experimental evidence indicates that mirror neurons in the monkey premotor area F5 encode the goals of observed motor acts [1-3]. However, it is unknown whether they also contribute to encoding the perspective from which the motor acts of others are seen. In order to address this issue, we recorded the visual responses of mirror neurons of monkey area F5 by using a novel experimental...

The term mirror neurons originally referred to neurons in the ventral premotor cortex of macaque monkeys (area F5, Figure 1a) that have the particularity of responding both when the monkey performs a particular action (e.g., grasping a peanut) and when the monkey perceives another individual performing a similar action. More recently the term mirror has been extended to areas of the human brain...

[This corrects the article on p. 396 in vol. 9, PMID: 26236215.].