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be age-inappropriate, start before age 12, occur often and be present in at least two settings, clearly interfere with social, school, or work functioning, and not be better explained by another mental disorder. Based on the above symptoms, three types of ADHD are defined: a predominantly inattentive presentation (ADHD-I)
This includes speed of counting, reaching for things, repeating words, and other developing vocal and motor skills that develop quickly in growing children. [96] Once reaching early maturity, there is then a long period of stability until speed of processing begins declining from middle age to senility (Salthouse, 2000). [97] In fact, cognitive ...
For a four-year-old, a year is a much bigger percentage of their overall lifespan thus far than it is for a 40-year-old – so no wonder it feels longer and more significant. When we’re young ...
A study showed that 50+ aged users of the dietary program SNAP "had about 2 fewer years of cognitive aging over a 10-year period compared with non-users" despite it having nearly no conditions for the sustainability and healthiness of the food products purchased with the coupons (or coupon-credits). [112] [113]
Slow processing may manifest in behavior as signaling a lack of motivation on behalf of the learner. However, slow processing is reflective of an impairment of the ability to coordinate and integrate multiple skills and information sources. [91] The main concern with individuals with autism regarding learning is in the imitation of skills. [61]
In an experiment, for a single-task walking, 24% of old adults have gait speed <0.8 m/s but for a dual-task of walking and talking, 62% of old adults have gait speed <0.8 m/s. In practical terms, this means that a large proportion of healthy community-dwelling old adults may not walk fast enough to safely cross the street while simultaneously ...
In a study conducted to measure whether visual memory in older adults with age-related visual decline was caused by memory performance or visual functioning, the following were examined: relationships among age, visual activity, and visual and verbal memory in 89 community dwelling volunteers aged 60–87 years.
Nerve impulses are extremely slow compared to the speed of electricity, where the electric field can propagate with a speed on the order of 50–99% of the speed of light; however, it is very fast compared to the speed of blood flow, with some myelinated neurons conducting at speeds up to 120 m/s (432 km/h or 275 mph) [citation needed].