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Perk facts & stats

7 fact-checked facts about perks and rewards, each with the reason behind it. 5 more are in today's round and join this page after it closes.

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The basics

Ivan Pavlov's famous experiments on conditioned responses were mainly carried out on which animals?

AnswerDogs

Pavlov showed that dogs learned to salivate at signals that had been paired with food.

How many items are in a baker's dozen?

Answer13

A baker's dozen is 13, one more than a regular dozen, a traditional little extra.

Going deeper

Which brain chemical is most closely linked with reward and motivation?

AnswerDopamine

Dopamine is a neurotransmitter central to the brain's reward system and to learning what is worth pursuing.

The word 'salary' comes from a Latin word related to which substance?

AnswerSalt

'Salary' comes from Latin 'salarium', which is derived from 'sal', meaning salt.

What is a gratuity?

AnswerA tip given for service

A gratuity is money given voluntarily for good service, from Latin 'gratuitus', meaning freely given.

Expert level

What is 'lagniappe', a word common in Louisiana?

AnswerA small extra gift given with a purchase

Lagniappe means a little bonus, like an extra pastry given free to a customer.

What does the Premack principle suggest?

AnswerA more-liked activity can reward doing a less-liked one

Also called 'grandma's rule', it means you can use a preferred activity as a reward, such as play after chores.

Know these cold?Today's round is five questions like these, 20 seconds each. Your streak and level follow you to every arena.Play today's round