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  • Asperger's Syndrome in Adults
  • Working To Come To Terms with Asperger's
  • Sex and Depression - The Real Story
  • The Loss of Joy: Anhedonia
  • All About Schizophrenia
  • Depression: Causes, Symptoms, and Treatment

Asperger Syndrome is an Autism Spectrum Disorder (or Pervasive Developmental Disorder) characterized by significant difficulties in social interaction along with restricted and repetitive patterns of behaviors and interests. Those with Asperger Syndrome, or AS, may exhibit a lack of empathy for their peers, clumsiness, and atypical use of language, though none of these symptoms are required for a diagnosis.1

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The pain of coming to terms with having Asperger's is still very real for me right now. There is a tremendous sense of grief. Grief for all that I suffered through to try to be "normal" and grief for how short of "normal" I always have been. There is also great relief to know that I am not crazy and that not everything can be traced back to an abusive past in the sense that some of what I experience is not choice/emotional but neurons/physical. The greatest challenge I face right now is trying to figure out which is which. This is not easy.

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One of the most common side effects of a number of antidepressant medications is loss of sex drive. I could forgive our friends at fine companies such as Eli Lilly, Bristol Meyers Squibb, and Pfizer if dry mouth, irritability, disrupted sleep patterns, loss of appetite, sloth, and social phobia were the sole issues related to the medications I take on a daily basis. However, it is the sex thing I find most challenging.

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Sadness

Anhedonia is the technical term for the inability to experience joy. When people are in the depths of depression, nothing touches them, not the most intensely pleasurable activities, not the most familiar comforts. They are emotionally frozen. In this state, people either have to get professional help or simply wait for weeks or months until the depression lifts by itself; nothing is going to make them feel better.

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Schizophrenia is a mental illness which affects one person in every hundred.

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Depression is perhaps the most common of all mental health problems, currently felt to affect one in every four adults to some degree. Depression is a problem with mood/feeling in which the mood is described as sad, feeling down in the dumps, being blue, or feeling low. While the depressed mood is present, evidence is also present which reflects the neurochemical or "brain chemistry" aspects of depression with the depressed individual experiencing poor concentration/attention, loss of energy, accelerated thought/worry, sleep/appetite disturbance, and other physical manifestations. When this diagnosis is present, the individual will exhibit at least five of the following symptoms during the depressive periods:

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New imaging studies are revealing—for the first time—patterns of brain development that extend into the teenage years. Although scientists don't know yet what accounts for the observed changes, they may parallel a pruning process that occurs early in life that appears to follow the principle of "use-it-or-lose-it:" neural connections, or synapses, that get exercised are retained, while those that don't are lost. At least, this is what studies of animals' developing visual systems suggest.

While it's known that both genes and environment play major roles in shaping early brain development, science still has much to learn about the relative influence of experience versus genes on the later maturation of the brain. Animal studies support a role for experience in late development, but no animal species undergoes anything comparable to humans' protracted childhood and adolescence. Nor is it yet clear whether experience actually creates new neurons and synapses, or merely establishes transitory functional changes. Nonetheless, it's tempting to interpret the new findings as empowering teens to protect and nurture their brain as a work in progress.

The newfound appreciation of the dynamic nature of the teen brain is emerging from MRI (magnetic resonance imaging) studies that scan a child's brain every two years, as he or she grows up. Individual brains differ enough that only broad generalizations can be made from comparisons of different individuals at different ages. But following the same brains as they mature allows scientists a much finer-grained view into developmental changes. In the first such longitudinal study of 145 children and adolescents, reported in l999, NIMH's Dr. Judith Rapoport and colleagues were surprised to discover a second wave of overproduction of gray matter, the thinking part of the brain—neurons and their branch-like extensions—just prior to puberty.1 Possibly related to the influence of surging sex hormones, this thickening peaks at around age 11 in girls, 12 in boys, after which the gray matter actually thins some.

Prior to this study, research had shown that the brain overproduced gray matter for a brief period in early development—in the womb and for about the first 18 months of life—and then underwent just one bout of pruning. Researchers are now confronted with structural changes that occur much later in adolescence. The teen's gray matter waxes and wanes in different functional brain areas at different times in development. For example, the gray matter growth spurt just prior to puberty predominates in the frontal lobe, the seat of "executive functions"—planning, impulse control and reasoning. In teens affected by a rare, childhood onset form of schizophrenia that impairs these functions, the MRI scans revealed four times as much gray matter loss in the frontal lobe as normally occurs.2 Unlike gray matter, the brain's white matter—wire-like fibers that establish neurons' long-distance connections between brain regions—thickens progressively from birth in humans. A layer of insulation called myelin progressively envelops these nerve fibers, making them more efficient, just like insulation on electric wires improves their conductivity.

Advancements in MRI image analysis are providing new insights into how the brain develops. UCLA's Dr. Arthur Toga and colleagues turned the NIMH team's MRI scan data into 4-D time-lapse animations of children's brains morphing as they grow up—the 4th dimension being rate-of-change.3 Researchers report a wave of white matter growth that begins at the front of the brain in early childhood, moves rearward, and then subsides after puberty. Striking growth spurts can be seen from ages 6 to 13 in areas connecting brain regions specialized for language and understanding spatial relations, the temporal and parietal lobes. This growth drops off sharply after age 12, coinciding with the end of a critical period for learning languages.

While this work suggests a wave of brain white matter development that flows from front to back, animal, functional brain imaging and postmortem studies have suggested that gray matter maturation flows in the opposite direction, with the frontal lobes not fully maturing until young adulthood. To confirm this in living humans, the UCLA researchers compared MRI scans of young adults, 23-30, with those of teens, 12-16.4 They looked for signs of myelin, which would imply more mature, efficient connections, within gray matter. As expected, areas of the frontal lobe showed the largest differences between young adults and teens. This increased myelination in the adult frontal cortex likely relates to the maturation of cognitive processing and other "executive" functions. Parietal and temporal areas mediating spatial, sensory, auditory and language functions appeared largely mature in the teen brain. The observed late maturation of the frontal lobe conspicuously coincides with the typical age-of-onset of schizophrenia—late teens, early twenties—which, as noted earlier, is characterized by impaired "executive" functioning.

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Category: Parenting

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