Memory Research Misses The Obvious

Written by Abraham Thomas

The search to reveal a mystery. Research laboratories aroundrepparttar world soughtrepparttar 140135 location of human memory. The research had followed diverse leads. One clue related torepparttar 140136 branched inputs of nerve cells, called dendrites. Branch growth was assisted by a protein called cypin. Some memory disabilities were related to deficits in cypin. So, one possibility was that nerve cells grew new branches to store memory. New branches could represent added memory. But, human memory was immense. People were reported to be able to recognize, with 99.5% accuracy, any one of 2,500 images shown to them at one second intervals. Each of those images contained millions of pixels of specific information. Whenrepparttar 140137 size and scale of human memory was considered,repparttar 140138 idea of branches, however microscopic, growing to add memories sounded perilously cancerous. More hints. LTP was another possibility. High frequency stimulation ofrepparttar 140139 dendrites of a neuron were known to improverepparttar 140140 sensitivity ofrepparttar 140141 synaptic nerve junctions. Such activity was seen to be "remembered" byrepparttar 140142 cell through greater sensitivity at specific inputs. Neurochemicals atrepparttar 140143 synaptic junctions were also known to increase such sensitivity. But, whilerepparttar 140144 process enhanced memory, LTP failed to offer a global hypothesis about how memory could be stored. Without answers. The hippocampus was also mentioned in connection with memory research. Damage to this organ, a component of a region ofrepparttar 140145 brain calledrepparttar 140146 limbic system, was known to cause patients to forget ongoing events within a few seconds. But, incidents from childhood and early adult life were still remembered. Memory had faded from a couple of years prior torepparttar 140147 event that caused damage torepparttar 140148 hippocampus. Older memories were still retained byrepparttar 140149 patient even withoutrepparttar 140150 hippocampus. Evidently,repparttar 140151 organ did not store such memories. It could play a role, butrepparttar 140152 actual storage of memory remained enigmatic. Inrepparttar 140153 end, all science did know was that memory resided all overrepparttar 140154 system and that one particular organ helpedrepparttar 140155 formation of memories. Combinatorial coding. Yet,repparttar 140156 answer torepparttar 140157 memory enigma had been staring them inrepparttar 140158 face for years. That happened, when science acknowledgedrepparttar 140159 use of combinatorial coding by nerve cells inrepparttar 140160 olfactory system. Combinatorial coding sounded confusing and complex. But, inrepparttar 140161 context of nerve cells, combinatorial coding only meant that a nerve cell recognized combinations. If a nerve cell had dendritic inputs, identified as A, B, C and so on to Z, it could then fire, when it received inputs at ABD, ABP, or XYZ. It recognized those combinations. ABD, ABP, or XYZ. The cell could identify ABD from ABP. Subtle differences. Such codes were extensively used by nature. The four "letters" inrepparttar 140162 genetic code A, C, G and T were used in combinations forrepparttar 140163 creation of a nearly infinite number of genetic sequences. Highly developed skill. It was combinatorial coding, which enabled nerve cells of reptilian nosebrains to recognize smells and make crucial life decisions sincerepparttar 140164 beginnings of history. Such sensory power had been developed in animals to a remarkable degree. Research showed that dogs could registerrepparttar 140165 parameters of a smell and then pick it out from millions of competing smells. The animals could detect a human scent on a glass slide that had been lightly fingerprinted and left outdoors for as much as two weeks. They could quickly sniff a few footprints of a person and determine accurately which wayrepparttar 140166 person was walking. The animal's nose could detectrepparttar 140167 relative odor strength difference between footprints only a few feet apart, to determinerepparttar 140168 direction of a trail. Recording and recognizing ABD and DEF enabled animals to record and recall a single smell to differentiate it from millions of other smells. Inherited memories of millions of smells decided whether food was edible, or inedible, or whether a spoor was life threatening. The system had both newly recorded and inherited memories, which enabled them to recognize smells inrepparttar 140169 environment. Inherited and acquired memories. While such remarkable odor recognition skills were known for ages, it was only inrepparttar 140170 late nineties that science discovered combinatorial coding. A Nobel Prize was awarded forrepparttar 140171 discovery ofrepparttar 140172 use combinatorial coding byrepparttar 140173 olfactory system in 2004. The olfactory system usedrepparttar 140174 coding to enable a relatively small number of olfactory receptors to recognize different odors. Science discovered that particular combinations could fire to trigger recognition. Inrepparttar 140175 experiment scientists reported that even slight changes in chemical structure activated different combinations of receptors. Thus, octanol smelled like oranges, butrepparttar 140176 similar compound octanoic acid smelled like sweat. We rememberedrepparttar 140177 smell of oranges. Evenrepparttar 140178 smell of sweat. Which meant thatrepparttar 140179 system remembered those combinations. But science failed to recognizerepparttar 140180 true significance of combinatorial coding when they searched forrepparttar 140181 location of human memory. Millions of combinations were possible forrepparttar 140182 nerve cell with inputs from A to Z. But nerve cells had thousands of inputs. If nerve cells remembered combinations, then that could berepparttar 140183 location of a galactic nervous system memory.

An Indian

Written by Kedar Joshi

An Average Indian is

Emotional, Sensitive, Kind, Broad Minded, Spiritual, Poor, Innocent, Racist, Class conscious, A mathematician, A philosopher, Brown, A slave, Forgiving, ill-mannered, A great cook, A singer, A musician, Semi-Literate, Jealous, Religious, Friendly, Welcoming, Open, A film maker, Film lover, Loving, Caring, Hypocritical, Straight, Cynical, Homely, Negligent, Rough, Impractical, Crazy, Fashionable, Disgusting, Judgmental, Tolerant, Impatient, Cheerful, Passionate, A thief, Prejudiced, Dishonest, A good neighbour, Romantic, Faithful, Uncritical, Unhealthy, A good listener, A freedom fighter, Materialistic, Weak, Undisciplined,

Cont'd on page 2 ==> © 2005
Terms of Use