The phrase "a hallmark example of" is correct and usable in written English.
It can be used to describe something that is a perfect or typical representation of a particular quality or characteristic.
Example: "The Mona Lisa is a hallmark example of Renaissance art, showcasing the era's emphasis on realism and human emotion."
Alternatives: "a prime example of" or "a quintessential representation of".
One hallmark example of a link between global topological network properties of complex functional brain connectivity and cognitive performance is the finding that general intelligence may depend on the efficiency of the brain's intrinsic functional network architecture.
Hallmark examples of these Lamarckian mechanisms are the CRISPR system in prokaryotes [ 69– 71] and the small RNA-based mechanism of viral immunity in C. elegans [ 72].
This characteristic was a hallmark of prior examples where non-experimental evidence led to strong causal inference i.e. "In no instance, did one design provide the 'clinching' proof, but, in combination, they made causal inference a compelling probability" [71].
For example, a hallmark of tic disorders is the presence of repetitive movements; youth with autism often engage in elaborate rituals; a patient with anorexia nervosa may obsess about eating-related behaviors; trichotillomania can be characterized as compulsive hair-pulling.
For example, a hallmark feature of post-traumatic stress disorder (PTSD) is visual mental images (Brewin et al., 2010; Ehlers, Hackmann, & Michael, 2004; Holmes, Grey, & Young, 2005) that can be experienced as very realistic (so-called pseudohallucinations; Brewin & Patel, 2010).
Representations that are invariant to translation, scale and other transformations, can considerably reduce the sample complexity of learning, allowing recognition of new object classes from very few examples – a hallmark of human recognition.
Dysfunctional metabolism is now acknowledged as a hallmark of cancer, and multiple different examples of altered metabolism in cancer cells have been demonstrated [ 3, 4].
In fact, the university's actions have all the hallmarks of a classic example of a SLAPP (Strategic Lawsuit Against Public Participation) lawsuit in which an organization with deep pockets uses its monetary power to intimidate citizens with the intent of controlling their behavior.
The murky green image on Dr. Knowles's wall shows an example of extracellular plaque, a hallmark of Alzheimer's.
