Contentment is the freedom that comes with letting go of attachment.
The Decerebrate Cat Walking Experiment
In the realm of scientific exploration, certain experiments push boundariesin ways not acceptable by modern ethical standards. One such experiment involves decerebrate cats (popular in the 1940-50s and not done anymore), but which shed light on locomotion,
The Decerebrate Cat Walking Experiment: The video showcases a decerebrate cat walking on a treadmill at varying speeds, revealing three distinct gait patterns. Decerebrate cats have had their cerebral cortex removed, leaving the brainstem intact. Essentially the cat was paralyzed as its spinal cord didn't talk to its brain anymore which means there was not enough muscle tone to keep the body upright; so researched used a harness to hold the weight of the body.
Locomotion was initiated by sensory input of the limbs on the moving thredmill.
The primary goal of these experiments was to explore the extent of the brain's involvement in controlling movement. At what level in the brain is behavior (locomotion) controlled. Researchers aimed to test the idea that much of locomotion control might be inherent to an animal's biomechanics, rather than relying heavily on conscious brain commands.
Findings:
- Minimal Brain Control: during locomotion, especially in activities like walking, trotting, or running, minimal control comes from the brain itself. Instead, the experiments suggest that a significant portion of locomotion control is achieved through biomechanical and morphological features of the animal's body.
- Biomechanical Design: The experiments support the concept of passive dynamic locomotion, which proposes that animals are capable of controlling their movements efficiently by taking advantage of their natural biomechanical structure.
Diagnostic Overshadowing Issue in Autism
Phrenology according to Gall. A Historical Curiosity
The prevailing view of the era was dominated by religious or philosophical beliefs rather than empirical research. Gall's ideas challenged long-held beliefs about the nature of the mind and the brain and landed in a lot of hot water.
And the hot water was not just religions, but also social. Phrenology also had practical implications, as some individuals and organizations began using it for character assessment in various contexts, such as education and employment. This raised ethical and legal questions about the fairness and validity of making judgments about people based on phrenological assessments.
Gall's most notable contribution was his intricate neuroanatomy diagram, which depicted the brain as a series of localized faculties or organs, each responsible for a particular aspect of personality or behavior. The size of these organs corresponded to a person's character traits and abilities. Obviously this is quite incredulous by today's standards - a historical curiousity.
- Firmness (in frontal lobe) Development of this area in the frontal lobe was associated with determination, willpower, and the ability to persevere in the face of challenges.
- Immortality: linked to religious and moral tendencies, as well as a sense of spirituality.
- Veneration (Parietal Love): related to feelings of respect, admiration, and reverence for authority figures or ideals
- Destructiveness (in lower back of brain): aggressive and combative behaviors, as well as a propensity for violence.
- Benevolence (frontal love): linked to kindness, empathy, and a compassionate nature.
- Acquisitiveness (forehead): desire for material wealth and possessions.
- Wit (Frontal Lobe): responsible for humor, quick thinking, and cleverness.
- Love of Offspring (back of brain):linked to parental instincts and the love and care of one's children.
- Secretiveness (Upper back of brain): associated with the tendency to keep secrets and be discreet.
- Self-Esteem (upper back of head): related to self-confidence, pride, and a sense of self-worth.