Some context: Heifetz was born into a Russian-Jewish family in Vilna, Lithuania then part of the Russian Empire. His father, Reuven Heifetz, son of Elie, was a local violin teacher and served as the concertmaster of the Vilnius Theatre Orchestra for one season before the theatre closed down. While Jascha was an infant, his father did a series of tests, observing how his son responded to his fiddling. This convinced him that Jascha had great potential, and before Jascha was two years old, his father bought him a small violin, and taught him bowing and simple fingering.
Heifetz married silent motion picture actress Florence Vidor (1895-1977), ex-wife of King Vidor, in 1928, and adopted her daughter, Suzanne. The couple had two more children, Josefa (born 1930) and Robert (1932-2001) before divorcing in 1945. In 1947, Heifetz married Frances Spielberger Spiegelberg (1911-2000), with whom he had another son, Joseph (known as Jay). The second marriage ended in divorce in 1962.  Heifetz's son Jay is a professional photographer. He was formerly head of marketing for the Los Angeles Philharmonic and Hollywood Bowl, and the Chief Financial Officer of Paramount Pictures' Worldwide Video Division. He lives and works in Fremantle, Western Australia. Heifetz's daughter, Josefa Heifetz Byrne, is a lexicographer, the author of the Dictionary of Unusual, Obscure and Preposterous Words.  Heifetz's grandson Danny Heifetz is an accomplished drummer/percussionist. Heifetz's extended family was active in Los Angeles progressive political circles in addition to music and art: they include artist Frances Heifetz-Bloch and her husband Kalman Bloch and daughter Michele Zukovsky--co-principal clarinetists for the Los Angeles Philharmonic--and son Gregory Bloch, violinist for the Italian rock band Premiata Forneria Marconi, It's A Beautiful Day, and member of the Saturday Night Live Band from 1978-80.  Although Heifetz had a "difficult" personality, and has even been described as "misanthropic", he enjoyed the company of selected friends who zealously guarded his privacy, he spoke several languages including flawless English, and was an avid bridge and ping-pong player. His childhood had been difficult; his father was an extremely stern man who, even after Jascha had become the family's sole breadwinner, would still roundly criticise every performance.
what were his parents like?
A: Jascha had become the family's sole breadwinner, would still roundly criticise every performance.

Some context: Henry Gustav Molaison (February 26, 1926 - December 2, 2008), known widely as H.M., was an American memory disorder patient who had a bilateral medial temporal lobectomy to surgically resect the anterior two thirds of his hippocampi, parahippocampal cortices, entorhinal cortices, piriform cortices, and amygdalae in an attempt to cure his epilepsy. Although the surgery was partially successful in controlling his epilepsy, a severe side effect was that he became unable to form new memories. H.M. was widely studied from late 1957 until his death in 2008. His case played an important role in the development of theories that explain the link between brain function and memory, and in the development of cognitive neuropsychology, a branch of psychology that aims to understand how the structure and function of the brain relates to specific psychological processes.
Henry Molaison was born on February 26, 1926, and experienced intractable epilepsy that has sometimes been attributed to a bicycle accident at the age of seven. (This accident was initially reported to have occurred at age nine, but was corrected by the patient's mother at a later stage.) He had partial seizures for many years, and then several tonic-clonic seizures following his 16th birthday. In 1953, he was referred to William Beecher Scoville, a neurosurgeon at Hartford Hospital, for treatment.  Scoville localized Molaison's epilepsy to his left and right medial temporal lobes (MTLs) and suggested surgical resection of the MTLs as a treatment. On September 1, 1953, at the age of 27, Molaison's bilateral medial temporal lobe resection included the removal of the hippocampal formation and adjacent structures, including most of the amygdaloid complex and entorhinal cortex. His hippocampi appeared entirely nonfunctional because the remaining 2 cm of hippocampal tissue appeared to have atrophied and because the entire entorhinal cortex, which forms the major sensory input to the hippocampus, was destroyed. Some of his anterolateral temporal cortex was also destroyed.  After the surgery, which was partially successful in its primary goal of controlling his epilepsy, Molaison developed severe anterograde amnesia: although his working memory and procedural memory were intact, he could not commit new events to his explicit memory. According to some scientists, he was impaired in his ability to form new semantic knowledge, but researchers argue over the extent of this impairment. He also had moderate retrograde amnesia, and could not remember most events in the one- to two-year period before surgery, nor some events up to 11 years before, meaning that his amnesia was temporally graded. However, his ability to form long-term procedural memories was intact; thus he could, for example, learn new motor skills, despite not being able to remember learning them.  The case was first reported in a paper by Scoville and Brenda Milner in 1957. Near the end of his life, Molaison regularly filled in crossword puzzles. He was able to fill in answers to clues that referred to pre-1953 knowledge. For post-1953 information he was able to modify old memories with new information. For instance, he could add a memory about Jonas Salk by modifying his memory of polio.  He died on December 2, 2008.
What are the symptoms of that?
A:
although his working memory and procedural memory were intact, he could not commit new events to his explicit memory.