TagBrain Hacking

The psychology of torture and the future of interrogation

Torture

Last year, Basoglu discovered that the trauma associated with CIDT [“cruel, inhuman or degrading treatment,” considered separately from physical torture but also illegal] has two further aspects that increase its psychological impact (American Journal of Orthopsychiatry, vol 79, p 135). His study of 432 torture survivors from Turkey and former Yugoslavia revealed that when several techniques are applied at the same time – such as hooding while forced to stand naked in a stress position – the effects of each one compounds the effects of the others. In addition he discovered that CIDT has a cumulative impact over time, fuelled by the sense of helplessness that it engenders. This means that it makes little sense to ask whether any specific CIDT amounts to torture, Basoglu says, because the overall impact cannot be judged separately from the context in which it is administered.

The same study revealed that people who had been subjected to CIDT were at greater risk of developing long-term mental health problems than those who had been subjected to physical torture alone. Basoglu suggests that this might be because torture stimulates the victim’s body to release pain-relieving opioids, and this process is triggered more rapidly with repeated exposure to pain. Victims often report that the anticipation of torture is worse than the torture itself, during which they describe a general numbing of the body.

New Scientist: Beyond torture: the future of interrogation

New Paper Pinpoints a Seat of Self-Control in the Brain

Prefrontal cortex

The ability to delay gratification allows humans to accomplish such goals as saving for retirement, going to the gym regularly and choosing to reduce greenhouse gas emissions. In a paper published March 28 in the journal Nature Neuroscience, a team of researchers for the first time causally shows that this ability is rooted in a part of the frontal lobe of the brain: the prefrontal cortex.

Science Daily: New Paper Pinpoints a Seat of Self-Control in the Brain

Certain morality-related brain functions can be disrupted by magnetic coils

phil mri image

Talk about messing with your mind. A new study by neuroscientist Liane Young and colleagues at Harvard University does exactly that: the researchers used magnetic signals applied to subjects’ craniums to alter their judgements of moral culpability. The magnetic stimulus made people less likely to condemn others for attempting but failing to inflict harm, they report in PNAS.

Most people make moral judgements of others’ actions based not just on their consequences but also on some view of what the intentions were. That makes us prepared to attribute diminished responsibility to children or people with severe mental illness who commit serious offences: it’s not just a matter of what they did, but how much they understood what they were doing.

Neuroimaging studies have shown that the attribution of beliefs to other people seems to involve a part of the brain called the right temporoparietal junction (RTPJ). So Young and colleagues figured that, if they disrupted how well the RTPJ functions, this might alter moral judgements of someone’s action that rely on assumptions about their intention.

The Great Beyond: Magnets mess minds, morality

Paranormal Seizure Activity

two surreal figures with aztec skull heads by uair01

A new case study in Cortex by neurologist Dr. Fabienne Picard (2010) reports on a patient who experienced unusual phenomena during epileptic seizures. She had the convincing sense that several familiar people (family members) were standing before her. This experience of a “sensed presence” is a classic trope in movies with supernatural themes (e.g., Carnival of Souls [available at Internet Archive], The Haunting [trailer for the 1963 version], Poltergeist, Dark Water), but it’s generally attributed to ghosts and not to seizure activity.

From the report:

A 62-year-old right-handed woman of normal psychiatric history presented a simple focal epileptic seizure including a complex sensation characterized by feeling the presence of several members of her family in the immediate environment, associated with paresthesia of the right hemibody (excluding the face). The feeling of presences and the paresthesia (numbness) appeared concomitantly and lasted in total several minutes. The episode occurred while she was sitting alone on the sofa of her living room and immediately felt the presence of four persons in her frontal space. She did not see or hear these persons (no visual or auditory hallucinations), but felt vividly their presence in her peripersonal [within reach] and near extrapersonal space [just outside of reach]. She “recognized” them as close family members. Closest was her grand-daughter who was sitting on the floor immediately in front of her, without any left or right lateralization in relation to her body, whereas the three other persons, her daughter and two other grand-children, were experienced to be localized at a distance of several meters. … This highly vivid and convincing feeling of presences was described by the patient as deeply pleasant, although she guessed that it was not possible that they were really there, as she was alone just before. … She was treated with pregabalin (300 mg/day) and there was no recurrence of simple or complex partial seizures and no further feeling of presences.

NeuroCritic: Paranormal Seizure Activity

See also:

Sleep Paralysis

The God Experiments

(Photo credit: uair01 / CC)

Brain Waves and Meditation

Brainwaves and meditation

During meditation, theta waves were most abundant in the frontal and middle parts of the brain.

“These types of waves likely originate from a relaxed attention that monitors our inner experiences. Here lies a significant difference between meditation and relaxing without any specific technique,” emphasizes Lagopoulos.

“Previous studies have shown that theta waves indicate deep relaxation and occur more frequently in highly experienced meditation practitioners. The source is probably frontal parts of the brain, which are associated with monitoring of other mental processes.”

“When we measure mental calm, these regions signal to lower parts of the brain, inducing the physical relaxation response that occurs during meditation.”

Science Daily: Brain Waves and Meditation

(via Chris23)

A drug that could give you perfect visual memory

RGS-14

Imagine if you could look at something once and remember it forever. You would never have to ask for directions again. Now a group of scientists has isolated a protein that mega-boosts your ability to remember what you see.

A group of Spanish researchers reported today in Science that they may have stumbled upon a substance that could become the ultimate memory-enhancer. The group was studying a poorly-understood region of the visual cortex. They found that if they boosted production of a protein called RGS-14 (pictured) in that area of the visual cortex in mice, it dramatically affected the animals’ ability to remember objects they had seen.

io9: A drug that could give you perfect visual memory

(via Edge of Tomorrow)

Electro-shock experiment replicated in France

French torture TV show

A French TV documentary features people in a spoof game show administering what they are told are near lethal electric shocks to rival contestants.

Those taking part are told to pull levers to inflict shocks – increasing in voltage – upon their opponents.

Although unaware that the contestants were actors and there was no electrical current, 82% of participants in the Game of Death agreed to pull the lever.

Programme makers say they wanted to expose the dangers of reality TV shows.

They say the documentary shows how many participants in the setting of a TV show will agree to act against their own principles or moral codes when ordered to do something extreme.

BBC: French TV contestants made to inflict ‘torture’

This is, of course, a replication of the Milgram experiment.

Glenn Greenwald notes the irony of Fox News’s moral outrage over the incident.

700-year-old Brain Found Preserved

700 year old preserved brain

ResearchBlogging.orgEvolutionary psychology tends to receive harsh criticism, and often rightly so. One of the main reasons for this is the severe lack of evidence for many of it’s proposals given that the paucity of fossilised brains fails to bolster many a case. And it isn’t even anyone’s fault. That’s just the way it goes sometimes, that the brain is a jelly-like substance that is subject to decay after death, and there’s no way we can objectively analyse or verify any differences in brains of long ago with brains of today.

This isn’t set to change anytime soon, but the remarkable discovery of a medieval child’s brain was the subject of a Neuroimage paper published recently. This is extremely exciting on many counts: the brain has been so fantastically preserved that it is possible to identify the frontal, temporal and occipital lobes, and even the sulci and gyri, the grooves and furrows channeled into brains.

However it is only the left-hemisphere that survived and not the entire brain, which had also shrunk to about 80% of it’s original weight due to the (natural) mummification process.

Neurowhoa: 700-year-old Brain Found Preserved

Brain Naturally Follows Scientific Method

Brain naturally follows scientific method

It turns out that there is a striking similarity between how the human brain determines what is going on in the outside world and the job of scientists. Good science involves formulating a hypothesis and testing whether this hypothesis is compatible with the scientist’s observations. Researchers in the Max Planck Institute for Brain Research in Frankfurt together with the University of Glasgow have shown that this is what the brain does as well. A study shows that it takes less effort for the brain to register predictable as compared to unpredictable images.

Alink and colleagues based this conclusion on the characteristics of responses in the primary visual cortex. It is known that the primary visual cortex is critical for vision and that responses in this brain area create a map of what we are currently looking at. Alink and colleagues, however, for the first time show that images induce smaller responses in this area when they are predictable. The implication of this finding is that the brain does not just sit and wait for visual signals to arrive. Instead, it actively tries to predict these signals and when it is right it is rewarded by being able to respond more efficiently. If it is wrong, massive responses are required to find out why it is wrong and to come up with better predictions.

Psychopaths’ Brains Wired to Seek Rewards, No Matter the Consequences

Psychopath

The brains of psychopaths appear to be wired to keep seeking a reward at any cost, new research from Vanderbilt University finds. The research uncovers the role of the brain’s reward system in psychopathy and opens a new area of study for understanding what drives these individuals.

“This study underscores the importance of neurological research as it relates to behavior,” Dr. Francis S. Collins, director of the National Institutes of Health, said. “The findings may help us find new ways to intervene before a personality trait becomes antisocial behavior.”

The results were published March 14, 2010, in Nature Neuroscience.

Science Daily: Psychopaths’ Brains Wired to Seek Rewards, No Matter the Consequences

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