a type ofreceptor cell found in the retina of the eye. Rods are criticalfor sight during dim illumination, whereas cones are more active in good light conditions.Individuals who lack rods (or have rods that don't function) suffer from night blindness, andcannot see properly in dim light.
was one ofthe original founders of the humanistic perspective. His theories encompassedthe importance of unconditional and conditional positive regard in development of the 'selfconcept' and 'conditions of worth' set by others. His work has been applied to a rangeof domains, particularly in therapy through his development of'client-centred'(now class="d-title" named 'person-centred'therapy.