Science

Several studies have shown that aerobic exercise can slow age-related cognitive decline, and in some cases, improve cognitive function in the older population. The purpose of this study was to investigate for the first time, the effects of resistance training on cognitive function, as measured by changes in NeuroTracker measures.

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25 older adults with a mean age of 70yrs were split into a trained group (6 weeks of resistance exercises), and an untrained group. Perceptual-cognitive ability was measured pre and post training using NeuroTracker baselines.

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The older adults who performed six weeks of resistance training experienced significant improvements in perceptual-cognitive function as measured by NeuroTracker. Resistance training may therefore be an effective means to slow age related cognitive decline.

Attention and feedback are known to play critical roles in learning. This preliminary study sought to assess the benefits of instant feedback within NeuroTracker task performance.

38 young adults (mean 23yrs old) completed 4 NeuroTracker sessions over two days. 19 participants were assisted with feedback on test performance throughout the sessions, and 19 were given no feedback. Pre and post training assessments were completed using the Continuous Performance Test II to measure cognitive function.

The participants assisted with feedback demonstrated greater improvement in NeuroTracker scores over the 4 sessions. The feedback group also demonstrated better transferability effects to the CPT-II task, reflected by a significantly decreased pre/post mean error rate. The results indicate that feedback has a positive effect on performance and may be an important aspect of transfer to cognitive functions.

To investigate the ‘selfish brain hypothesis’, which suggests the brain prioritizes its own glucose needs over those of the peripheral organs such as skeletal muscle, using individual and dual-task assessments with NeuroTracker and exercise on a cycle ergometer.

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32 participants were randomly assigned to a no priority, cognitive priority (focus on NeuroTracker task), or physical priority (focus on physical task) group. NeuroTracker and a cycle ergometer were used to measure cognition and physical performance, respectively. Participants completed 5 assessments: 2 cognitive, 1 predicted VO2 max, and 1 dual task. During the dual task participants completed 3 NeuroTracker sessions, while cycling on a cycle ergometer. The cycle ergometer was modified to remove demands on balance, isolating aerobic demands.

Results revealed that the physical priority group had significantly higher cycle ergometer performance compared to the cognitive priority group. However, overall physical performance remained relatively stable throughout the physical and dual task assessments. All groups experienced improvements in their visual tracking speed scores as they progressed through the study. No evidence was found to support the selfish brain hypothesis during dual task performance, in contrast results may indicate an arousal effect from physical exercise, heightening NeuroTracker performance compared to single task performance.

To examine physiological and cognitive differences between starters and non-starters in women’s soccer over the course of a season.

28 NCAA Division I female soccer players were tested at preseason and postseason on battery of assessments. This battery included a one session baseline NeuroTracker, vertical jump power, repeated line drills, reaction time, cognitive questionnaires, and finally, muscle architecture changes using ultrasonography.

Over the season, both groups had very similar NeuroTracker baselines, and both group’s speed thresholds improved significantly from pre-season to post-season. As there was no training intervention, the researchers concluded that this improvement effect revealed the positive influence of daily soccer practice on cognitive functions. This suggests NeuroTracker is a sensitive measure of the cumulative effects of sports training over time. These measures contrasted the cognitive questionnaire results, where the soccer player self-reported decreases in energy, focus and alertness, in line with increased fatigue, over the season.

To compare performance and muscle architecture changes in starters and nonstarters during a National Collegiate Athletic Association Division I women's soccer season.

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28 females (av. 20 years old) were assessed on NeuroTracker baselines, vertical jump power, repeated line drills and reaction time at preseason, midseason, and postseason. Muscle architecture changes using ultrasonography were assessed at preseason and postseason.

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Both starters and non-starters showed similar status or improvements on all assessments across the season, except for line drills performance, which showed greater improvements for starters. NeuroTracker and reaction time performance improved regardless of playtime. Results of muscle architecture analysis indicated that practice training alone provide sufficient stimulus for improving muscle quality during the competitive season. Overall starters did not display significant benefits from competition over athletes who performed training only.

To investigate if the typically declining perceptual-cognitive abilities of healthy older people can be improved with NeuroTracker training.

20 younger adults (mean age 27 years old) and 20 older adults (mean age 66 years old) completed 3-hours of NeuroTracker training distributed over 3 weeks.

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Although older adults had significantly lower NeuroTracker scores than older adults, they demonstrated a strong learning response to the training, equivalent to their younger peers. By the end of the training program the older adults closely matched the initial baseline performance of younger adults. Although the results demonstrate a decline in perceptual-cognitive functions from healthy aging, the results suggest this decline can be quickly reversed with a short training intervention.

This study measured the capacity of older participants to improve their tracking speed thresholds (NeuroTracker), to investigate if age related cognitive decline can be reversed with a training intervention known to be directly relevant to the effects of healthy aging.

20 healthy younger adults (mean age 24 years old) and 20 healthy older adults (mean age 67 years old) performed 15 NeuroTracker training sessions distributed over 5 weeks.

Both groups obtained benefit from training with a similar rate of progression. Though the older group started off at a significantly lower level than the younger group, they obtained speed thresholds that were similar to those of untrained younger adults by the end of the training program. Furthermore, towards the end of the training program the rate of learning appeared to have slowed for the younger group, yet the older group still showed a strong learning curve, suggesting greater improvements with continued training. In conclusion, although healthy older people show a significant age-related deficit in the NeuroTracker task, they respond strongly to training effects and demonstrate an ability to fully reverse age-related functional decline with a short intervention of NeuroTracker training.

To assess the learning capacities of elite athlete populations compared to amateur athletes and nonathlete university students on a neutral cognitive training assessment (NeuroTracker).

308 participants were assessed by completing 15 distributed NeuroTracker sessions, grouped as the following: 102 professional elite athletes (NHL, EPL and Top 14 Rugby), 173 NCAA elite non-professional athletes, and 33 non-athlete university students.

The results showed a clear distinction between level of athletic performance and corresponding fundamental mental capacities for learning a demanding abstract and dynamic scene task. Elite athletes showed significantly higher initial baselines than the other groups, along with substantially superior learning rates. The elite non-professional athletes also similarly significantly higher learning rates over the non-athletes group. For the first time this evidence suggest that a defining characteristic of elite professional athletes is their perceptual-cognitive learning prowess, associated with unusually high levels of neuroplasticity, and that NeuroTracker is a sensitive tool for objectively assessing these abilities.

To investigate the extent to which older people's abilities predict biological motion cues to declines with natural aging, and to see if any such effects can be reversed through a NeuroTracker training intervention.

41 older adults with mean age of 68yrs old were divided into trained, active control (placebo), and passive control (no training) groups. They were measured on a standardized BMP post training, which consisted of 15 NeuroTracker sessions distributed over 5 weeks.

Only the NeuroTracker trained group showed transfer to BMP, who demonstrated substantial improvements in processing BMP at 4m. The conclusion was a clear and positive transfer of perceptual-cognitive training onto a socially relevant ability in the elderly.

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To investigate if the decline in biological motion perception associated with healthy aging can be reversed with a short NeuroTracker training intervention.

13 participants completed 3-hours of NeuroTracker training over 5-weeks, and 28 control participants did either experimental training or no training (overall mean age of 67 years old). Pre-post assessments of biological motion perception was assessed with a VR walker (point like display) at 4m and 16m.

Pre-NeuroTracker training participants displayed significantly lower performance for interpreting human movement at 4m, compared to 16m. Controls showed no change post-training, whereas the NeuroTracker trained group's performance at 4m rose to the level of their performance at 16m. As biological motion perception abilities are deemed to be important for social skills, as well as critical for collision avoidance at 4m, the researchers concluded that the results demonstrate NeuroTracker to be a useful form of generic training for helping older people deal with socially relevant dynamic scenes.

This paper covers foundational concepts of NeuroTracker’s relevance to training of cognitive capacities deemed critical in sports performance, particularly in dynamic team-sports. It also contains a study investigating the effects of attentional loads in learning paradigms, with the aim of understanding optimal load conditions for training perceptual-cognitive ability.

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4 elite professional sports teams trained their athletes on NeuroTracker (15-30 sessions) during their competition seasons. An English Premier Team club, a National Hockey League team, and a European Rugby team were all trained in the standard sitting down position to isolate any influence from attentional mechanisms involved in posture control. Another NHL team performed the training in standing position, involving basic balance demands on attention.

Taking the statistical average for learning progression on NeuroTracker, the three professional sports teams training in sitting position showed near identical progression, with rapid early learning slowing down towards longer term but continued learning. The standing sports team showed much lower NeuroTracker scores, but more importantly slower overall learning progression, with a large magnitude of difference to the other teams. The findings clearly demonstrate the link between balance control mechanisms and perceptual-cognitive demands solicited by NeuroTracker training. This demonstrates that cognitive training loads need to be sensitively optimized to attentional thresholds in order to generate effective short and longer term learning adaptations.

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3D vision (binocular stereo) develops during childhood and tends to reduce after 65 years of age. This study aimed to investigate whether these effects are significant when processing complex and dynamic motion.

Three groups of 20 subjects were recruited: children (7–12 years old), adults (18–40 years old) and older adults (≥65 years old). Each person completed 4 NeuroTracker sessions, 2 in 2D (no binocular stereo) and 2 in 3D (with binocular stereo).

As typical, adults achieved significantly higher NeuroTracker scores than children or elderly. They also gained a significantly larger advantage when performing NeuroTracker in 3D. In turn, children showed more advantage with 3D than elderly. This suggests that older populations have reduced ability to process complex and dynamic motion using stereoscopic processing. This study reveals that comparison between scores with and without stereoscopic effect, allows direct evaluation of the stereopsis advantage when performing NeuroTracker.