at bottom, motivated by belief in search of data, rather than data in search of explanation." Alcock and cognitive psychologist Arthur S. Reber have criticized parapsychology broadly, writing that if psi effects were true, they would negate fundamental principles of science such as causality, time's arrow, thermodynamics, and the inverse square law. According to Alcock and Reber, "parapsychology cannot be true unless the rest of science isn't. Moreover, if psi effects were real, they would have already fatally disrupted the rest of the body of science". Richard Land has written that from what is known about human biology it is highly unlikely that evolution has provided humans with ESP as research has shown the recognized five senses are adequate for the evolution and survival of the species. Michael Shermer, in the article "Psychic Drift: Why most scientists do not believe in ESP and psi phenomena" for Scientific American, wrote "the reason for skepticism is that we need replicable data and a viable theory, both of which are missing in psi research." In January 2008 the results of a study using neuroimaging were published. To provide what are purported to be the most favorable experimental conditions, the study included appropriate emotional stimuli and had participants who are biologically or emotionally related, such as twins. The experiment was designed to produce positive results if telepathy, clairvoyance or precognition occurred, but despite this no distinguishable neuronal responses were found between psychic stimuli and non-psychic stimuli, while variations in the same stimuli showed anticipated effects on patterns of brain activation. The researchers concluded that "These findings are the strongest evidence yet obtained against the existence of paranormal mental phenomena." Other studies have attempted to test the psi hypothesis by using functional neuroimaging. A neuroscience review of the studies (Acunzo et al. 2013) discovered methodological weaknesses that could account for the reported psi effects. A 2014 study discovered that schizophrenic patients have more belief in psi than healthy adults. Some researchers have become skeptical of parapsychology such as Susan Blackmore and John Taylor after years of study and no progress in demonstrating the existence of psi by the scientific method. Physics The ideas of psi (precognition, psychokinesis and telepathy) violate well-established laws of physics. Psychokinesis violates the inverse-square law, the second law of thermodynamics, and the conservation of momentum. There is no known mechanism for psi. On the subject of psychokinesis, the physicist Sean M.