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Shuhan He MD

Virtual Reality Science
July 15, 2019

Virtual Reality: Episodic Memory

Human long-term memory can be broadly classified into declarative memory and procedural (implicit) memory; The former category involves conscious and intentional recollection of factual information, previous experiences, and concepts. The declarative memory, or explicit memory, is further divided into episodic and semantic memory. Endel Tulving first coined the term episodic…
Clinical Physical ExamLong White Coat
July 15, 2019

Cranial Nerve Exam

The neurological exam allows for detection of symptoms that are indicative of underlying neurological pathologies and abnormalities. The exam is also necessary to determine the range of disability in neurological function. A properly conducted neurological examination allows for the localization of the pathology to particular areas in the central and…
Clinical Physical ExamLong White Coat
July 15, 2019

Motor System Exam

The motor examination involves examining the following and comparing both sides to note abnormalities: Bulk and nutrition of muscles Tone of muscles Power of muscles Reflexes Coordination of movements Involuntary movements Gait The motor neurons whose axons terminate at neuromuscular junctions and which activate voluntary skeletal muscles contraction upon stimulation…
Clinical Physical ExamLong White Coat
July 15, 2019

Reflex Exam

Reflexes can broadly be categorized as deep (tendon) reflexes and superficial reflexes.The deep (tendon) reflexes are monosynaptic stretch reflexes. They are tested through the use of a clinical hammer. Striking the clinical hammer against the tendon of the muscle elicits a sudden stretch impulse which can be observed as a…
Clinical Physical ExamLong White Coat
July 15, 2019

Sensory System Examination

Sensations are of two types: primary and cortical. Primary sensations are touch, pain, temperature, position, passive movements and vibrations. Cortical sensations are localization, two-point discrimination, stereognosis, and graphesthesia. Sensations are carried by two afferent pathways: the spinothalamic tracts and the dorsal column tracts. Spinothalamic tracts detect pain, temperature, and crude…
Drone HypothesisDrone Science
July 8, 2019

Drones for Dam Surveying

Unmanned aerial vehicles or drones are disruptive technology which has the potential to transform business, agriculture, leisure, medicine, and surveillance. Particularly, drones offer unique opportunities for dam surveying and large-scale structures monitoring. Note that dams play a crucial role in water resources development and management and dam surveying is essential…