"a heightened ability" is correct and usable in written English.
It can be used to describe a situation in which someone has developed an increased ability in a certain area. For example: "Through practice, Tyler has gained a heightened ability in mathematics."
Since many toxic substances are bitter, a heightened ability to detect particular bitter compounds could have conferred a survival advantage.
ESP is the human growth hormone of detective shows: a heightened ability that basically seems like cheating.
His unmistakable dialogue lends characters a heightened ability to interpret and relay aspects of the world around them.
The key difference between bilinguals and monolinguals may be more basic: a heightened ability to monitor the environment.
Humans have evolved a heightened ability to sense and manipulate the physical world, yet the GUI based on intangible pixels takes little advantage of this capacity.
The higher costs of this decentralized approach to IT management are offset by the benefits of localized innovation and a heightened ability to respond to customers' needs.
He also asserts that a newly heightened ability should not surpass that of the highest- achieving person in an un-enhanced population, though Buchanan would allow exceptions for some extremely beneficial innovations.
This also has the potential to generate variants with an altered ability to colonize and heightened ability to penetrate the mucosal barriers [ 86, 116].
It was Derek's inability to process language in his early years, coupled with his inability to ascribe functional meaning to everyday sounds, that, I contend, led to his heightened ability to process all sounds in a musical way.
Authors suggest that this heightened ability to control inhibition may be a result of tic suppression over time.
Atypical antipsychotics provide better control of the negative and affective symptoms of schizophrenia when compared with conventional neuroleptics; nevertheless, their heightened ability to improve cognitive dysfunction remains a matter of debate.
