Three Brain Pathways to Reading

The frontal reading system has been implicated in phonological processing and semantic processing (word analysis). This is also where Broca’s area is found. Broca’s area is involved in language processing, speech production, and comprehension. Neuron activation is increased in this area when words are spoken (Devlin, Matthews, & Rushworth, 2003). The ventral posterior processing system (located in the occipital and temporal lobes) is most associated with orthographic processing (visu...

 A Cerebral Cortex Makes Animals Programmable

As we ascend the scale of cerebral development the possibility of teaching increases. It becomes possible to domesticate and train these higher-brain animals in just the measure that their brains are developed. You can teach very little to a fish or a reptile, but directly you come to the higher cerebral mammals you are confronted by the new possibility of establishing an artificial, taught, motive system to control, supplement or altogether replace natural instinct. You must catch them young...

 The Myth of the Brain as a Video Camera

Before we discuss what current research tells us about memory and recall, it may be helpful to address a common misconception that emerged from the work ofCanadian neurosurgeon Wilder Penfield in the 1930s and 1940s. Penfield reported that during surgery, an electrical stimulation of the temporal lobe produced episodes of recall, almost like seeing movie clips. Many concluded that the brain ―videotaped‖ life, and to remember things, our memories simply needed to be prompted. But these epi...

 Brains Must Feel Safe for Education

The brain’s main job is prioritizing information relevant to our survival. Anything that suggests the possibility of danger, whether real or imagined, becomes a higher priority than anything else that is going on at that moment. This data is processed first, shifting our attention from cognitive processes down to the faster-acting limbic system, while more complex cerebral operations shut down. Survival always overrides problem-solving, analyzing, remembering, pattern-detection and other ra...

 Sugar Impacts Learning

The DHA-deprived rats also developed signs of resistance to insulin, a hormone that controls blood sugar and regulates synaptic function in the brain. A closer look at the rats' brain tissue suggested that insulin had lost much of its power to influence the brain cells. "Because insulin can penetrate the blood–brain barrier, the hormone may signal neurons to trigger reactions that disrupt learning and cause memory loss," Gomez-Pinilla said. He suspects that fructose is the culprit behi...