DEFT reading of the market has propelled psychology graduates and Japan experts Sarah Whitley and Matthew Brett back to the apex of The Herald's table of top performing fund managers working for Scottish investment houses.

Their stewardship of the £289.72 million Baillie Gifford Japanese fund meant they also entered the UK-wide top 10 at number nine, up from 19th, when the latest performance figures for the three years to the end of June were compiled by financial publisher Citywire.

They last topped the table eight months ago and their rise ended the reign of First State's emerging markets expert Jonathan Asante, who fell to third place in the Scottish rankings after a four-month stint as number one.

He runs Edinburgh-based First State's Global Emerging Markets, Global Emerging Markets Leaders, and Latin America funds.

Ms Whitley, who moved to Edinburgh when she was 12, rowed for Oxford University, where she read experimental psychology.

The sailing enthusiast joined Baillie Gifford after graduation in 1980 and had a stint on the UK desk alongside Max Ward, who went on to establish the Independent Investment Trust.

She became a partner at Baillie Gifford in 1986.

Ms Whitley joined the Japanese equities investment team in 1982 and has headed it since 2001.

Her tenure on the Japanese fund dates back to 2004, while Mr Brett became a manager on the portfolio in 2008.

Mr Brett had joined Baillie Gifford's graduate scheme three years earlier after earning a PhD in Psychology at Bristol. He had previously graduated from Cambridge University.

Their rise to the top of the fund manager table comes at a time when the Japanese economy and the Japanese market are under close scrutiny.

Prime Minister Shinzo Abe is seeking to stimulate Japan's economy through monetary stimulus and currency depreciation. The apparent early success of this programme has led to stock market gains.

Radical easing by the central bank and increased government spending were the first two parts of a so-called three arrow programme.

They helped exporters such as electronics companies by making their products less expensive overseas.

But there remains some doubt about whether Mr Abe can follow up with a third arrow of structural changes that could help to embed the recovery.

Among the stocks favoured by the Baillie Gifford pairing are Fuji Heavy Industries, owner of Subaru cars. This is their largest holding.

Their fund also has large stakes in computer games company Nintendo and telecommunications company KDDI.

Notwithstanding the rise of Ms Whitley and Mr Brett, Baillie Gifford saw its number of rated managers fall from 18 to 15.

Richard Bell, manager of the Baillie Gifford Phoenix Global Growth, and Patrick Edwardson and Mike Brooks, managers of Baillie Gifford Diversified Growth, lost their ratings due to poor performance.

Citywire's rankings are based on risk-adjusted performance. Fewer than one-fifth of fund managers in the UK qualify for a Citywire rating, of which there were 316 in the month.

The Herald-Citywire survey covers fund managers working for investment houses with a significant presence in Scotland.