Answer the following questions in about 150 words each: (a) Do correlational studies contribute in understanding 'cause and…

(a) Correlational studies Correlational studies can contribute to understanding cause and effect, but only indirectly. A correlation shows that two variables vary together; it does not by itself establish that one produces the other. The directionality problem remains: does unemployment cause depression, or does depression cause unemployment? The third-variable problem also matters: income, stress, or genetics may influence both. Nevertheless, correlation is valuable because it generates hypotheses, identifies risk factors, and is often the only ethical or practical method. Longitudinal designs, dose-response patterns, and control of confounds strengthen causal inference. The smoking–lung cancer link began with epidemiological correlations and was later supported by experimental and physiological evidence. In Indian public health, correlations between poverty, nutrition and mental health guide policy before trials are possible, especially where ethical review limits field experimentation. Thus, correlational studies do not prove causation alone, but they are indispensable for causal reasoning in human behaviour and public policy work.

(b) Psychological and cultural factors Perception is not a passive recording; it is shaped by psychological states and cultural learning. Psychological factors include perceptual set, motivation, needs, emotions and expectations. A hungry person may see food more readily; anxiety can sharpen threat detection. These top-down influences support Gregory’s constructivist view that perception uses hypotheses. Cultural factors show that even basic depth cues are not interpreted identically everywhere. Müller-Lyer illusion studies report weaker effects in some non-Western or rural groups, suggesting architectural and environmental learning. Hudson’s 1960 South African study, with African and European schoolchildren, found differences in pictorial depth perception, supporting Gibson’s emphasis on learned ecological experience. In India, exposure to crowded markets, road signs and religious iconography trains selective attention and pattern recognition. This makes perception both personal and socially learned in daily life. The debate between Gregory and Gibson is therefore not absolute: perception is biological, but its organisation is shaped by culture.

(c) Amnesia and emotional memory Amnesia patients often cannot consciously recall emotional events, yet emotional memory may survive in implicit forms. Explicit or declarative memory depends heavily on the hippocampus, while emotional learning and affective conditioning involve the amygdala. This amygdala–hippocampus dissociation explains why a patient may fail to report a frightening event but still show fear, avoidance or physiological arousal. Claparède’s pinprick study is classic: an amnesic patient, after being pricked, later flinched when his hand was approached, indicating unconscious emotional memory. Korsakoff patients similarly may not narrate the event accurately, but can display preserved emotional responses or implicit priming. Flashbulb memory research adds caution: emotional arousal can make memories vivid and confident, but vividness does not guarantee accurate explicit recall. In clinical settings, this distinction helps therapists work with trauma survivors who cannot verbalise experiences. Thus, amnesia does not erase all emotional memory; it mainly disrupts conscious, detailed recall and meaning over time.

(d) Narrative approach to personality The narrative approach treats personality as a story the person tells about himself or herself. The question “Who am I?” is central because identity is not only a list of traits; it is a meaningful account of one’s past, present and future. McAdams’ life story model organises personality into three levels: dispositional traits, characteristic adaptations, and the integrative life narrative. Traits describe what a person is like; adaptations describe how they cope; the narrative integrates these into a coherent self. In this view, answering “Who am I?” involves selecting events, assigning themes, and constructing a sense of continuity and purpose. Indian oral traditions, family life stories and community memories show that identity is often socially authored, not merely individual. It thus complements trait psychology by explaining why similar traits can produce different life meanings. The narrative approach is powerful because it captures meaning, but it must be balanced with behavioural and biological evidence.

(e) Jet-lag and circadian rhythms Jet-lag is a genuine phenomenon because the body contains internal clocks that do not instantly match a new time zone. The suprachiasmatic nucleus (SCN) in the hypothalamus acts as the master circadian pacemaker, regulating sleep, temperature, hormones and alertness over roughly 24 hours. Light is the main zeitgeber, or synchroniser, that entrains the SCN. Siffre’s cave studies showed that isolated humans maintain free-running rhythms, proving that circadian timing is endogenous. When travellers cross time zones, the SCN and peripheral clocks become misaligned. Eastward travel is usually harder because it requires phase advance, while westward travel requires phase delay and is often easier. Shift-work research shows similar disruption in workers whose schedules conflict with daylight. Melatonin, timed light exposure, and gradual schedule adjustment help adaptation. For Indian pilots, railway staff and shift workers, jet-lag is not imagined fatigue but a measurable circadian mismatch. It therefore has real health and safety consequences.