Wednesday, July 30, 2008
My Brain Made Me Do It
Raymond Tallis opens the floor with what I think was a pretty fair rebuke of those 'who wish to blame their brains for their misdemeaners' using the recent research in neuroscience as proof. Tallis argues that this research does not answer philosophical questions pertaining to free will or legal questions about the allocation of blame. Moreover, Tallis continues on a more philosophical tact, 'if you wish to blame your brain for bad behavior, why stop there'? Since the brain is a physical entity it is therefore wired into nature and thus one could go so far as to say "the big bang made me do it".
I think Tallis makes good points. Previously I had been under the sway of 'well, we might as well hold criminals accountable for their actions, regardless of the free-will question and the obvious failures of our justice system, because it just might have a minor effect on their decision to commit or not commit a socially unaccepted offense or crime. An effect, however small, nevertheless beneficial'. But Tallis and Magistretti have helped clarify the personal responsibility stance for me. Holding people accountable for their brain's decisions is thus potentially beneficial (behavior modifying) and intellectually justifiable (at least until I'm swayed otherwise).
Anyways check out the vid. In chapter 6 there's some brief commentary on Benjamin Libet's interesting work, as well as some of the philosophical thought dilemma's such as the 'trolley problem'.
Feel free to share your thoughts on this topic in the comments section below.
Wednesday, February 20, 2008
Contrast Asynchrony Illusion
Thursday, January 31, 2008
DBS Triggers Past Memories
Link:
Canadian surgeons have made a serendipitous discovery. While using deep brain stimulation to try suppressing the appetite of a morbidly obese patient, they inadvertently evoked in the patient vivid autobiographical memories of an event that had taken place more than 30 years previously. They also found that the electrical stimulation improved the patient's performance on associative memory tasks.
These unexpected findings raise the possibility that deep brain stimulation could be used to treat patients with Alzheimer's Disease, and the research team is now beginning a small clinical trial involving 6 patients who have been diagnosed with that condition.
Deep brain stimulation (DBS) is an invasive technique involving the implantation of an array of electrodes into the brain. The implant, which is usually attached by thin wires to a small battery which is itself implanted under the skin near the collarbone, acts as a " brain pacemaker" - it emits regular electrical pulses, which activate or inhibit specific regions of the brain.
Monday, December 17, 2007
Hitting the Nail on the Head
This particular gentlemen clearly took this old adage quite literally...Via Mindhacks:
"I just found this jaw-dropping case study of a man who banged 11 nails into his head while sadly quite distressed and psychotic.
The X-ray images are striking on their own, and what is even more astounding is that he made a full recovery."
Penetrating head injury in planned and repetitive deliberate self-harm.
Mayo Clinic Proceedings. 2007 May;82(5):536.
Demetriades AK, Papadopoulos MC.
44-year-old man presented to his local emergency department wearing a baseball cap and complaining of headaches that had progressively worsened over the preceding 11 weeks. After we provided generous analgesia and performed simple investigations that failed to identify a diagnosis, the patient removed his cap to reveal an assortment of metallic objects embedded in his scalp. Plain radiographs showed 11 nails penetrating into his brain. A detailed history revealed a diagnosis of paranoid schizophrenia, and the patient confirmed that he had hammered a nail into his head each week for the past 11 weeks to rid him of evil. The nails were removed with the patient under general anesthesia, and he made an uncomplicated recovery with no neurological deficits.