Tag Archives: biological brain
27 Feb Chomsky, Locke and Aristotle on Learning Language
Inherited Abilities In systems design, there is a growing trend to “hard code” less into the system and leave more to be configured by the person or organization that is using the software. The growth of Rules and Workflow Engines that can be managed by non-technical users is prime evidence of this trend. And yet, the complex instruction […]
26 Feb Physiology of Learning to Generalize
I began this blog heavily concentrating on the physiology of the brain, its cells and the way they interconnect. Learning and association are not dealt with much in those posts other than to describe ways in which the brain and its cells provide mechanisms for these activities. Many of the mechanisms of association are fairly clearly understood […]
25 Feb Discrimination, Association and Recognition
Discrimination Although discrimination has negative connotations, we do it every millisecond. We must discriminate between distractions and important information we see and hear. The environment is filled with ambient noise, sometimes so much so as to prevent understanding. Once we have filtered out the noise through discrimination, we must further discriminate between incorrect and correct interpretations of the […]
24 Feb Neural Network Perception
Feedback in Image Processing While the flow of electrical impulses in the brain triggered by visual stimuli travels sequentially through layers I then II then III of the visual cortex, this directional flow does not prevent impulses from other sources, including feedback loops within the visual cortex from contributing to our ability to process images. […]
22 Feb Understanding What we See
Many Japanese kanji characters (originally imported from China) are little pictures of things in the real world. For example 木 (ki) is a tree. You can see the trunk and the branches. By adding a line at the bottom 本 (hon), you get roots or origin. Put three together 森 (mori) and you have a forest. The symbol […]
21 Feb Pattern Recognition in Two Dimensions
Perceptual Grid We live in three dimensional space, and understanding three dimensions is critical to our ability to go places and do things, but we comprehend things in many dimensions. Our senses, however, tend to flatten things out. Images are projected on our light-sensitive retinas in exactly two-dimensional patterns. The rods and cones possess light-sensitive […]
18 Feb Insanity, Perception and Consciousness
Have you ever heard voices, seen people and things others can’t see, perceived colors, sounds or sensations that weren’t really there? The human mind has amazing abilities, sometimes giving us more output than is present in the input. Is this insanity, creativity or a fluke? I can’t answer these questions in this blog, but as we […]
17 Feb Call in the Reinforcements
I think of learning like photography. The length of time of the exposure and the width of the aperture determine whether the film or digital array receives sufficient light to capture the image. The focus of the lens is important too. As adults, we can sometimes control the number of times we return to a […]
15 Feb Perceptual Signatures
We will momentarily leave Yorrick in his warm, cozy waterbed, to consider perceptual signatures that take place in the world outside him. This world is characterized by patterns, visual, audio, aromatic, tactile and complex, that each have their own signature. The section of this blog on cognition, which deals with logic and reasoning, explores that […]
13 Feb Remember Yorrick
Mouldering Memories Sometimes dredging up old memories is a major operation in excavation. Yet we have an amazing capacity to retain information learned long ago and not recalled in recent memory. Today, I’d like to address questions of learning, especially in the context of the earliest learned things. In order to recognize something, we must […]