Behavioural Science & Sociocultural Psychiatry · Paper A
Maslow's hierarchy of needs
Maslow's hierarchy of needs matters because it offers a simple, if imperfect, way to think about what motivates human behaviour, and about which needs must be met before higher goals become achievable. It proposes needs are arranged in a pyramid, from basic physiological needs (food, water, sleep) at the base, through safety, love and belonging, and esteem, up to self-actualisation (realising one's full personal potential) at the top. For example, imagine a homeless patient struggling to attend follow-up appointments, their unmet basic needs for food and shelter can take priority over any goal of personal growth. This is a humanistic theory, emphasising personal growth and potential rather than unconscious drives or learned behaviour.
The lower four levels, physiological, safety, love/belonging, and esteem, are called deficiency needs, because a lack of them creates a felt deficit that motivates behaviour aimed at reducing it. Self-actualisation at the top is a growth need, motivating behaviour aimed at expanding potential rather than filling a lack. In the original model, lower needs generally had to be reasonably satisfied before higher needs became motivating, though later versions allow more flexibility. For example, imagine a patient with untreated chronic pain, an unmet safety-adjacent need, who finds it hard to engage with esteem-building activities like returning to work. In practice, this means care planning often has to address more basic unmet needs first, food, safety, housing, before an intervention aimed at self-esteem can realistically succeed.